diff --git a/src/Discord.Net.Core/Cache/CacheableEntityExtensions.cs b/src/Discord.Net.Core/Cache/CacheableEntityExtensions.cs
index fb265f94a..6e6b0945f 100644
--- a/src/Discord.Net.Core/Cache/CacheableEntityExtensions.cs
+++ b/src/Discord.Net.Core/Cache/CacheableEntityExtensions.cs
@@ -8,7 +8,7 @@ namespace Discord
 {
     internal static class CacheableEntityExtensions
     {
-        public static IActivityModel ToModel<TModel>(this RichGame richGame) where TModel : WritableActivityModel, new()
+        public static IActivityModel ToModel<TModel>(this RichGame richGame) where TModel : IActivityModel, new()
         {
             return new TModel()
             {
@@ -34,7 +34,7 @@ namespace Discord
             };
         }
 
-        public static IActivityModel ToModel<TModel>(this SpotifyGame spotify) where TModel : WritableActivityModel, new()
+        public static IActivityModel ToModel<TModel>(this SpotifyGame spotify) where TModel : IActivityModel, new()
         {
             return new TModel()
             {
@@ -53,11 +53,12 @@ namespace Discord
         }
 
         public static IActivityModel ToModel<TModel, TEmoteModel>(this CustomStatusGame custom)
-            where TModel : WritableActivityModel, new()
-            where TEmoteModel : WritableEmojiModel, new()
+            where TModel : IActivityModel, new()
+            where TEmoteModel : IEmojiModel, new()
         {
             return new TModel
             {
+                Id = "custom",
                 Type = ActivityType.CustomStatus,
                 Name = custom.Name,
                 State = custom.State,
@@ -66,7 +67,7 @@ namespace Discord
             };
         }
 
-        public static IActivityModel ToModel<TModel>(this StreamingGame stream) where TModel : WritableActivityModel, new()
+        public static IActivityModel ToModel<TModel>(this StreamingGame stream) where TModel : IActivityModel, new()
         {
             return new TModel
             {
@@ -77,8 +78,11 @@ namespace Discord
             };
         }
 
-        public static IEmojiModel ToModel<TModel>(this IEmote emote) where TModel : WritableEmojiModel, new()
+        public static IEmojiModel ToModel<TModel>(this IEmote emote) where TModel : IEmojiModel, new()
         {
+            if (emote == null)
+                return null;
+
             var model = new TModel()
             {
                 Name = emote.Name
diff --git a/src/Discord.Net.Core/Cache/Models/Emoji/IEmojiModel.cs b/src/Discord.Net.Core/Cache/Models/Emoji/IEmojiModel.cs
index bc5b43e2a..4a1270ba7 100644
--- a/src/Discord.Net.Core/Cache/Models/Emoji/IEmojiModel.cs
+++ b/src/Discord.Net.Core/Cache/Models/Emoji/IEmojiModel.cs
@@ -8,27 +8,14 @@ namespace Discord
 {
     public interface IEmojiModel
     {
-        ulong? Id { get; }
-        string Name { get; }
-        ulong[] Roles { get; }
-        bool RequireColons { get; }
-        bool IsManaged { get; }
-        bool IsAnimated { get; }
-        bool IsAvailable { get; }
+        ulong? Id { get; set; }
+        string Name { get; set; }
+        ulong[] Roles { get; set; }
+        bool RequireColons { get; set; }
+        bool IsManaged { get; set; }
+        bool IsAnimated { get; set; }
+        bool IsAvailable { get; set; }
 
-        ulong? CreatorId { get; }
-    }
-
-    internal class WritableEmojiModel : IEmojiModel
-    {
-        public ulong? Id { get; set; }
-        public string Name { get; set; }
-        public ulong[] Roles { get; set; }
-        public bool RequireColons { get; set; }
-        public bool IsManaged { get; set; }
-        public bool IsAnimated { get; set; }
-        public bool IsAvailable { get; set; }
-
-        public ulong? CreatorId { get; set; }
+        ulong? CreatorId { get; set; }
     }
 }
diff --git a/src/Discord.Net.Core/Cache/Models/Presense/IActivityModel.cs b/src/Discord.Net.Core/Cache/Models/Presense/IActivityModel.cs
index a66e88754..64633e604 100644
--- a/src/Discord.Net.Core/Cache/Models/Presense/IActivityModel.cs
+++ b/src/Discord.Net.Core/Cache/Models/Presense/IActivityModel.cs
@@ -8,81 +8,41 @@ namespace Discord
 {
     public interface IActivityModel
     {
-        string Id { get; }
-        string Url { get; }
-        string Name { get; }
-        ActivityType Type { get; }
-        string Details { get; }
-        string State { get; }
-        ActivityProperties Flags { get; }
-        DateTimeOffset CreatedAt { get; }
-        IEmojiModel Emoji { get; }
-        ulong? ApplicationId { get; }
-        string SyncId { get; }
-        string SessionId { get; }
+        string Id { get; set; }
+        string Url { get; set; }
+        string Name { get; set; }
+        ActivityType Type { get; set; }
+        string Details { get; set; }
+        string State { get; set; }
+        ActivityProperties Flags { get; set; }
+        DateTimeOffset CreatedAt { get; set; }
+        IEmojiModel Emoji { get; set; }
+        ulong? ApplicationId { get; set; }
+        string SyncId { get; set; }
+        string SessionId { get; set; }
 
 
         #region Assets
-        string LargeImage { get; }
-        string LargeText { get; }
-        string SmallImage { get; }
-        string SmallText { get; }
+        string LargeImage { get; set; }
+        string LargeText { get; set; }
+        string SmallImage { get; set; }
+        string SmallText { get; set; }
         #endregion
 
         #region Party
-        string PartyId { get; }
-        long[] PartySize { get; }
+        string PartyId { get; set; }
+        long[] PartySize { get; set; }
         #endregion
 
         #region Secrets
-        string JoinSecret { get; }
-        string SpectateSecret { get; }
-        string MatchSecret { get; }
+        string JoinSecret { get; set; }
+        string SpectateSecret { get; set; }
+        string MatchSecret { get; set; }
         #endregion
 
         #region Timestamps
-        DateTimeOffset? TimestampStart { get; }
-        DateTimeOffset? TimestampEnd { get; }
-        #endregion
-    }
-
-    internal class WritableActivityModel : IActivityModel
-    {
-        public string Id { get; set; }
-        public string Url { get; set; }
-        public string Name { get; set; }
-        public ActivityType Type { get; set; }
-        public string Details { get; set; }
-        public string State { get; set; }
-        public ActivityProperties Flags { get; set; }
-        public DateTimeOffset CreatedAt { get; set; }
-        public IEmojiModel Emoji { get; set; }
-        public ulong? ApplicationId { get; set; }
-        public string SyncId { get; set; }
-        public string SessionId { get; set; }
-
-
-        #region Assets
-        public string LargeImage { get; set; }
-        public string LargeText { get; set; }
-        public string SmallImage { get; set; }
-        public string SmallText { get; set; }
-        #endregion
-
-        #region Party
-        public string PartyId { get; set; }
-        public long[] PartySize { get; set; }
-        #endregion
-
-        #region Secrets
-        public string JoinSecret { get; set; }
-        public string SpectateSecret { get; set; }
-        public string MatchSecret { get; set; }
-        #endregion
-
-        #region Timestamps
-        public DateTimeOffset? TimestampStart { get; set; }
-        public DateTimeOffset? TimestampEnd { get; set; }
+        DateTimeOffset? TimestampStart { get; set; }
+        DateTimeOffset? TimestampEnd { get; set; }
         #endregion
     }
 }
diff --git a/src/Discord.Net.Core/Cache/Models/Presense/IPresenceModel.cs b/src/Discord.Net.Core/Cache/Models/Presense/IPresenceModel.cs
index c58a1fad5..887aa858b 100644
--- a/src/Discord.Net.Core/Cache/Models/Presense/IPresenceModel.cs
+++ b/src/Discord.Net.Core/Cache/Models/Presense/IPresenceModel.cs
@@ -8,10 +8,10 @@ namespace Discord
 {
     public interface IPresenceModel
     {
-        ulong UserId { get; }
-        ulong? GuildId { get; }
-        UserStatus Status { get; }
-        ClientType[] ActiveClients { get; }
-        IActivityModel[] Activities { get; }
+        ulong UserId { get; set; }
+        ulong? GuildId { get; set; }
+        UserStatus Status { get; set; }
+        ClientType[] ActiveClients { get; set; }
+        IActivityModel[] Activities { get; set; }
     }
 }
diff --git a/src/Discord.Net.Core/Cache/Models/Users/ICurrentUserModel.cs b/src/Discord.Net.Core/Cache/Models/Users/ICurrentUserModel.cs
index 80b832cf8..7d7b28995 100644
--- a/src/Discord.Net.Core/Cache/Models/Users/ICurrentUserModel.cs
+++ b/src/Discord.Net.Core/Cache/Models/Users/ICurrentUserModel.cs
@@ -8,12 +8,12 @@ namespace Discord
 {
     public interface ICurrentUserModel : IUserModel
     {
-        bool? IsVerified { get; }
-        string Email { get; }
-        bool? IsMfaEnabled { get; }
-        UserProperties Flags { get; }
-        PremiumType PremiumType { get; }
-        string Locale { get; }
-        UserProperties PublicFlags { get; }
+        bool? IsVerified { get; set; }
+        string Email { get; set; }
+        bool? IsMfaEnabled { get; set; }
+        UserProperties Flags { get; set; }
+        PremiumType PremiumType { get; set; }
+        string Locale { get; set; }
+        UserProperties PublicFlags { get; set; }
     }
 }
diff --git a/src/Discord.Net.Core/Cache/Models/Users/IMemberModel.cs b/src/Discord.Net.Core/Cache/Models/Users/IMemberModel.cs
index 3c3a67d5e..972fa7354 100644
--- a/src/Discord.Net.Core/Cache/Models/Users/IMemberModel.cs
+++ b/src/Discord.Net.Core/Cache/Models/Users/IMemberModel.cs
@@ -8,16 +8,16 @@ namespace Discord
 {
     public interface IMemberModel
     {
-        IUserModel User { get; }
+        IUserModel User { get; set; }
 
-        string Nickname { get; }
-        string GuildAvatar { get; }
-        ulong[] Roles { get; }
-        DateTimeOffset JoinedAt { get; }
-        DateTimeOffset? PremiumSince { get; }
-        bool IsDeaf { get; }
-        bool IsMute { get; }
-        bool? IsPending { get; }
-        DateTimeOffset? CommunicationsDisabledUntil { get; }
+        string Nickname { get; set; }
+        string GuildAvatar { get; set; }
+        ulong[] Roles { get; set; }
+        DateTimeOffset JoinedAt { get; set; }
+        DateTimeOffset? PremiumSince { get; set; }
+        bool IsDeaf { get; set; }
+        bool IsMute { get; set; }
+        bool? IsPending { get; set; }
+        DateTimeOffset? CommunicationsDisabledUntil { get; set; }
     }
 }
diff --git a/src/Discord.Net.Core/Cache/Models/Users/IUserModel.cs b/src/Discord.Net.Core/Cache/Models/Users/IUserModel.cs
index 24d05d0fc..6dcf1d9a7 100644
--- a/src/Discord.Net.Core/Cache/Models/Users/IUserModel.cs
+++ b/src/Discord.Net.Core/Cache/Models/Users/IUserModel.cs
@@ -6,11 +6,12 @@ using System.Threading.Tasks;
 
 namespace Discord
 {
-    public interface IUserModel : IEntity<ulong>
+    public interface IUserModel
     {
-        string Username { get; }
-        string Discriminator { get; }
-        bool? IsBot { get; }
-        string Avatar { get; }
+        ulong Id { get; set; }
+        string Username { get; set; }
+        string Discriminator { get; set; }
+        bool? IsBot { get; set; }
+        string Avatar { get; set; }
     }
 }
diff --git a/src/Discord.Net.Rest/API/Common/CurrentUser.cs b/src/Discord.Net.Rest/API/Common/CurrentUser.cs
index 4a19056b2..626256ae1 100644
--- a/src/Discord.Net.Rest/API/Common/CurrentUser.cs
+++ b/src/Discord.Net.Rest/API/Common/CurrentUser.cs
@@ -25,18 +25,46 @@ namespace Discord.API
         public Optional<UserProperties> PublicFlags { get; set; }
 
         // ICurrentUserModel
-        bool? ICurrentUserModel.IsVerified => Verified.ToNullable();
+        bool? ICurrentUserModel.IsVerified
+        {
+            get => Verified.ToNullable();
+            set => throw new NotSupportedException();
+        }
 
-        string ICurrentUserModel.Email => Email.GetValueOrDefault();
+        string ICurrentUserModel.Email
+        {
+            get => Email.GetValueOrDefault();
+            set => throw new NotSupportedException();
+        }
 
-        bool? ICurrentUserModel.IsMfaEnabled => MfaEnabled.ToNullable();
+        bool? ICurrentUserModel.IsMfaEnabled
+        {
+            get => MfaEnabled.ToNullable();
+            set => throw new NotSupportedException();
+        }
 
-        UserProperties ICurrentUserModel.Flags => Flags.GetValueOrDefault();
+        UserProperties ICurrentUserModel.Flags
+        {
+            get => Flags.GetValueOrDefault();
+            set => throw new NotSupportedException();
+        }
 
-        PremiumType ICurrentUserModel.PremiumType => PremiumType.GetValueOrDefault();
+        PremiumType ICurrentUserModel.PremiumType
+        {
+            get => PremiumType.GetValueOrDefault();
+            set => throw new NotSupportedException();
+        }
 
-        string ICurrentUserModel.Locale => Locale.GetValueOrDefault();
+        string ICurrentUserModel.Locale
+        {
+            get => Locale.GetValueOrDefault();
+            set => throw new NotSupportedException();
+        }
 
-        UserProperties ICurrentUserModel.PublicFlags => PublicFlags.GetValueOrDefault();
+        UserProperties ICurrentUserModel.PublicFlags
+        {
+            get => PublicFlags.GetValueOrDefault();
+            set => throw new NotSupportedException();
+        }
     }
 }
diff --git a/src/Discord.Net.Rest/API/Common/Emoji.cs b/src/Discord.Net.Rest/API/Common/Emoji.cs
index af1a25532..2bc381fdb 100644
--- a/src/Discord.Net.Rest/API/Common/Emoji.cs
+++ b/src/Discord.Net.Rest/API/Common/Emoji.cs
@@ -1,4 +1,5 @@
 using Newtonsoft.Json;
+using System;
 
 namespace Discord.API
 {
@@ -21,20 +22,52 @@ namespace Discord.API
         [JsonProperty("user")]
         public Optional<User> User { get; set; }
 
-        ulong? IEmojiModel.Id => Id;
+        ulong? IEmojiModel.Id
+        {
+            get => Id;
+            set => throw new NotSupportedException();
+        }
 
-        string IEmojiModel.Name => Name;
+        string IEmojiModel.Name
+        {
+            get => Name;
+            set => throw new NotSupportedException();
+        }
 
-        ulong[] IEmojiModel.Roles => Roles;
+        ulong[] IEmojiModel.Roles
+        {
+            get => Roles;
+            set => throw new NotSupportedException();
+        }
 
-        bool IEmojiModel.RequireColons => RequireColons;
+        bool IEmojiModel.RequireColons
+        {
+            get => RequireColons;
+            set => throw new NotSupportedException();
+        }
 
-        bool IEmojiModel.IsManaged => Managed;
+        bool IEmojiModel.IsManaged
+        {
+            get => Managed;
+            set => throw new NotSupportedException();
+        }
 
-        bool IEmojiModel.IsAnimated => Animated.GetValueOrDefault();
+        bool IEmojiModel.IsAnimated
+        {
+            get => Animated.GetValueOrDefault();
+            set => throw new NotSupportedException();
+        }
 
-        bool IEmojiModel.IsAvailable => Available.GetValueOrDefault();
+        bool IEmojiModel.IsAvailable
+        {
+            get => Available.GetValueOrDefault();
+            set => throw new NotSupportedException();
+        }
 
-        ulong? IEmojiModel.CreatorId => User.GetValueOrDefault()?.Id;
+        ulong? IEmojiModel.CreatorId
+        {
+            get => User.GetValueOrDefault()?.Id;
+            set => throw new NotSupportedException();
+        }
     }
 }
diff --git a/src/Discord.Net.Rest/API/Common/Game.cs b/src/Discord.Net.Rest/API/Common/Game.cs
index 32e0d5c51..133943d3e 100644
--- a/src/Discord.Net.Rest/API/Common/Game.cs
+++ b/src/Discord.Net.Rest/API/Common/Game.cs
@@ -42,50 +42,96 @@ namespace Discord.API
         [JsonProperty("created_at")]
         public Optional<long> CreatedAt { get; set; }
 
-        string IActivityModel.Id => Id.GetValueOrDefault();
+        string IActivityModel.Id {
+            get => Id.GetValueOrDefault(); set => throw new NotSupportedException();
+        }
 
-        string IActivityModel.Url => StreamUrl.GetValueOrDefault();
+        string IActivityModel.Url {
+            get => StreamUrl.GetValueOrDefault(); set => throw new NotSupportedException();
+        }
 
-        string IActivityModel.State => State.GetValueOrDefault();
+        string IActivityModel.State {
+            get => State.GetValueOrDefault(); set => throw new NotSupportedException();
+        }
 
-        IEmojiModel IActivityModel.Emoji => Emoji.GetValueOrDefault();
+        IEmojiModel IActivityModel.Emoji {
+            get => Emoji.GetValueOrDefault(); set => throw new NotSupportedException();
+        }
 
-        string IActivityModel.Name => Name;
+        string IActivityModel.Name {
+            get => Name; set => throw new NotSupportedException();
+        }
 
-        ActivityType IActivityModel.Type => Type.GetValueOrDefault().GetValueOrDefault();
+        ActivityType IActivityModel.Type {
+            get => Type.GetValueOrDefault().GetValueOrDefault(); set => throw new NotSupportedException();
+        }
 
-        ActivityProperties IActivityModel.Flags => Flags.GetValueOrDefault();
+        ActivityProperties IActivityModel.Flags {
+            get => Flags.GetValueOrDefault(); set => throw new NotSupportedException();
+        }
 
-        string IActivityModel.Details => Details.GetValueOrDefault();
-        DateTimeOffset IActivityModel.CreatedAt => DateTimeOffset.FromUnixTimeMilliseconds(CreatedAt.GetValueOrDefault());
+        string IActivityModel.Details {
+            get => Details.GetValueOrDefault(); set => throw new NotSupportedException();
+        }
+        DateTimeOffset IActivityModel.CreatedAt {
+            get => DateTimeOffset.FromUnixTimeMilliseconds(CreatedAt.GetValueOrDefault()); set => throw new NotSupportedException();
+        }
 
-        ulong? IActivityModel.ApplicationId => ApplicationId.ToNullable();
+        ulong? IActivityModel.ApplicationId {
+            get => ApplicationId.ToNullable(); set => throw new NotSupportedException();
+        }
 
-        string IActivityModel.SyncId => SyncId.GetValueOrDefault();
+        string IActivityModel.SyncId {
+            get => SyncId.GetValueOrDefault(); set => throw new NotSupportedException();
+        }
 
-        string IActivityModel.SessionId => SessionId.GetValueOrDefault();
+        string IActivityModel.SessionId {
+            get => SessionId.GetValueOrDefault(); set => throw new NotSupportedException();
+        }
 
-        string IActivityModel.LargeImage => Assets.GetValueOrDefault()?.LargeImage.GetValueOrDefault();
+        string IActivityModel.LargeImage {
+            get => Assets.GetValueOrDefault()?.LargeImage.GetValueOrDefault(); set => throw new NotSupportedException();
+        }
 
-        string IActivityModel.LargeText => Assets.GetValueOrDefault()?.LargeText.GetValueOrDefault();
+        string IActivityModel.LargeText {
+            get => Assets.GetValueOrDefault()?.LargeText.GetValueOrDefault(); set => throw new NotSupportedException();
+        }
 
-        string IActivityModel.SmallImage => Assets.GetValueOrDefault()?.SmallImage.GetValueOrDefault();
+        string IActivityModel.SmallImage {
+            get => Assets.GetValueOrDefault()?.SmallImage.GetValueOrDefault(); set => throw new NotSupportedException();
+        }
 
-        string IActivityModel.SmallText => Assets.GetValueOrDefault()?.SmallText.GetValueOrDefault();
+        string IActivityModel.SmallText {
+            get => Assets.GetValueOrDefault()?.SmallText.GetValueOrDefault(); set => throw new NotSupportedException();
+        }
 
-        string IActivityModel.PartyId => Party.GetValueOrDefault()?.Id;
+        string IActivityModel.PartyId {
+            get => Party.GetValueOrDefault()?.Id; set => throw new NotSupportedException();
+        }
 
-        long[] IActivityModel.PartySize => Party.GetValueOrDefault()?.Size;
+        long[] IActivityModel.PartySize {
+            get => Party.GetValueOrDefault()?.Size; set => throw new NotSupportedException();
+        }
 
-        string IActivityModel.JoinSecret => Secrets.GetValueOrDefault()?.Join;
+        string IActivityModel.JoinSecret {
+            get => Secrets.GetValueOrDefault()?.Join; set => throw new NotSupportedException();
+        }
 
-        string IActivityModel.SpectateSecret => Secrets.GetValueOrDefault()?.Spectate;
+        string IActivityModel.SpectateSecret {
+            get => Secrets.GetValueOrDefault()?.Spectate; set => throw new NotSupportedException();
+        }
 
-        string IActivityModel.MatchSecret => Secrets.GetValueOrDefault()?.Match;
+        string IActivityModel.MatchSecret {
+            get => Secrets.GetValueOrDefault()?.Match; set => throw new NotSupportedException();
+        }
 
-        DateTimeOffset? IActivityModel.TimestampStart => Timestamps.GetValueOrDefault()?.Start.ToNullable();
+        DateTimeOffset? IActivityModel.TimestampStart {
+            get => Timestamps.GetValueOrDefault()?.Start.ToNullable(); set => throw new NotSupportedException();
+        }
 
-        DateTimeOffset? IActivityModel.TimestampEnd => Timestamps.GetValueOrDefault()?.End.ToNullable();
+        DateTimeOffset? IActivityModel.TimestampEnd {
+            get => Timestamps.GetValueOrDefault()?.End.ToNullable(); set => throw new NotSupportedException();
+        }
 
 
 
diff --git a/src/Discord.Net.Rest/API/Common/GuildMember.cs b/src/Discord.Net.Rest/API/Common/GuildMember.cs
index cfe4e652e..18aac3822 100644
--- a/src/Discord.Net.Rest/API/Common/GuildMember.cs
+++ b/src/Discord.Net.Rest/API/Common/GuildMember.cs
@@ -27,24 +27,44 @@ namespace Discord.API
         public Optional<DateTimeOffset?> TimedOutUntil { get; set; }
 
         // IMemberModel
-        string IMemberModel.Nickname => Nick.GetValueOrDefault();
+        string IMemberModel.Nickname {
+            get => Nick.GetValueOrDefault(); set => throw new NotSupportedException();
+        }
 
-        string IMemberModel.GuildAvatar => Avatar.GetValueOrDefault();
+        string IMemberModel.GuildAvatar {
+            get => Avatar.GetValueOrDefault(); set => throw new NotSupportedException();
+        }
 
-        ulong[] IMemberModel.Roles => Roles.GetValueOrDefault(Array.Empty<ulong>());
+        ulong[] IMemberModel.Roles {
+            get => Roles.GetValueOrDefault(Array.Empty<ulong>()); set => throw new NotSupportedException();
+        }
 
-        DateTimeOffset IMemberModel.JoinedAt => JoinedAt.GetValueOrDefault();
+        DateTimeOffset IMemberModel.JoinedAt {
+            get => JoinedAt.GetValueOrDefault(); set => throw new NotSupportedException();
+        }
 
-        DateTimeOffset? IMemberModel.PremiumSince =>  PremiumSince.GetValueOrDefault();
+        DateTimeOffset? IMemberModel.PremiumSince {
+            get => PremiumSince.GetValueOrDefault(); set => throw new NotSupportedException();
+        }
 
-        bool IMemberModel.IsDeaf => Deaf.GetValueOrDefault(false);
+        bool IMemberModel.IsDeaf {
+            get => Deaf.GetValueOrDefault(false); set => throw new NotSupportedException();
+        }
 
-        bool IMemberModel.IsMute => Mute.GetValueOrDefault(false);
+        bool IMemberModel.IsMute {
+            get => Mute.GetValueOrDefault(false); set => throw new NotSupportedException();
+        }
 
-        bool? IMemberModel.IsPending => Pending.ToNullable();
+        bool? IMemberModel.IsPending {
+            get => Pending.ToNullable(); set => throw new NotSupportedException();
+        }
 
-        DateTimeOffset? IMemberModel.CommunicationsDisabledUntil => TimedOutUntil.GetValueOrDefault();
+        DateTimeOffset? IMemberModel.CommunicationsDisabledUntil {
+            get => TimedOutUntil.GetValueOrDefault(); set => throw new NotSupportedException();
+        }
 
-        IUserModel IMemberModel.User => User;
+        IUserModel IMemberModel.User {
+            get => User; set => throw new NotSupportedException();
+        }
     }
 }
diff --git a/src/Discord.Net.Rest/API/Common/Presence.cs b/src/Discord.Net.Rest/API/Common/Presence.cs
index 173460242..4269074c0 100644
--- a/src/Discord.Net.Rest/API/Common/Presence.cs
+++ b/src/Discord.Net.Rest/API/Common/Presence.cs
@@ -30,16 +30,24 @@ namespace Discord.API
         [JsonProperty("premium_since")]
         public Optional<DateTimeOffset?> PremiumSince { get; set; }
 
-        ulong IPresenceModel.UserId => User.Id;
+        ulong IPresenceModel.UserId {
+            get => User.Id; set => throw new NotSupportedException();
+        }
 
-        ulong? IPresenceModel.GuildId => GuildId.ToNullable();
+        ulong? IPresenceModel.GuildId {
+            get => GuildId.ToNullable(); set => throw new NotSupportedException();
+        }
 
-        UserStatus IPresenceModel.Status => Status;
+        UserStatus IPresenceModel.Status {
+            get => Status; set => throw new NotSupportedException();
+        }
 
-        ClientType[] IPresenceModel.ActiveClients => ClientStatus.IsSpecified
-            ? ClientStatus.Value.Select(x => (ClientType)Enum.Parse(typeof(ClientType), x.Key, true)).ToArray()
-            : Array.Empty<ClientType>();
+        ClientType[] IPresenceModel.ActiveClients {
+            get => ClientStatus.IsSpecified ? ClientStatus.Value.Select(x => (ClientType)Enum.Parse(typeof(ClientType), x.Key, true)).ToArray() : Array.Empty<ClientType>(); set => throw new NotSupportedException();
+        }
 
-        IActivityModel[] IPresenceModel.Activities => Activities.ToArray();
+        IActivityModel[] IPresenceModel.Activities {
+            get => Activities.ToArray(); set => throw new NotSupportedException();
+        }
     }
 }
diff --git a/src/Discord.Net.Rest/API/Common/User.cs b/src/Discord.Net.Rest/API/Common/User.cs
index 26e5deafd..03d23374f 100644
--- a/src/Discord.Net.Rest/API/Common/User.cs
+++ b/src/Discord.Net.Rest/API/Common/User.cs
@@ -1,4 +1,5 @@
 using Newtonsoft.Json;
+using System;
 
 namespace Discord.API
 {
@@ -21,14 +22,31 @@ namespace Discord.API
 
 
         // IUserModel
-        string IUserModel.Username => Username.GetValueOrDefault();
+        string IUserModel.Username
+        {
+            get => Username.GetValueOrDefault();
+            set => throw new NotSupportedException();
+        }
 
-        string IUserModel.Discriminator => Discriminator.GetValueOrDefault();
+        string IUserModel.Discriminator {
+            get => Discriminator.GetValueOrDefault(); set => throw new NotSupportedException();
+        }
 
-        bool? IUserModel.IsBot => Bot.ToNullable();
+        bool? IUserModel.IsBot
+        {
+            get => Bot.ToNullable();
+            set => throw new NotSupportedException();
+        }
 
-        string IUserModel.Avatar => Avatar.GetValueOrDefault();
+        string IUserModel.Avatar
+        {
+            get => Avatar.GetValueOrDefault(); set => throw new NotSupportedException();
+        }
 
-        ulong IEntity<ulong>.Id => Id;
+        ulong IUserModel.Id
+        {
+            get => Id;
+            set => throw new NotSupportedException();
+    }
     }
 }
diff --git a/src/Discord.Net.WebSocket/Cache/ICacheProvider.cs b/src/Discord.Net.WebSocket/Cache/ICacheProvider.cs
index 265580193..5d67b892e 100644
--- a/src/Discord.Net.WebSocket/Cache/ICacheProvider.cs
+++ b/src/Discord.Net.WebSocket/Cache/ICacheProvider.cs
@@ -29,7 +29,7 @@ namespace Discord.WebSocket
         #region Presence
 
         ValueTask<IPresenceModel> GetPresenceAsync(ulong userId, CacheRunMode runmode);
-        ValueTask AddOrUpdatePresenseAsync(ulong userId, IPresenceModel presense, CacheRunMode runmode);
+        ValueTask AddOrUpdatePresenseAsync(ulong userId, IPresenceModel model, CacheRunMode runmode);
         ValueTask RemovePresenseAsync(ulong userId, CacheRunMode runmode);
 
         #endregion
diff --git a/src/Discord.Net.WebSocket/ClientStateManager.Experiment.cs b/src/Discord.Net.WebSocket/ClientStateManager.Experiment.cs
index cc59c57aa..4ad2460a3 100644
--- a/src/Discord.Net.WebSocket/ClientStateManager.Experiment.cs
+++ b/src/Discord.Net.WebSocket/ClientStateManager.Experiment.cs
@@ -41,7 +41,10 @@ namespace Discord.WebSocket
 
         #region Global users
         internal void RemoveReferencedGlobalUser(ulong id)
-            => _userReferences.TryRemove(id, out _);
+        {
+            Console.WriteLine("Global user untracked");
+            _userReferences.TryRemove(id, out _);
+        }
 
         private void TrackGlobalUser(ulong id, SocketGlobalUser user)
         {
diff --git a/src/Discord.Net.WebSocket/Entities/Users/SocketPresence.cs b/src/Discord.Net.WebSocket/Entities/Users/SocketPresence.cs
index e6cd61bcc..9e64bc2bb 100644
--- a/src/Discord.Net.WebSocket/Entities/Users/SocketPresence.cs
+++ b/src/Discord.Net.WebSocket/Entities/Users/SocketPresence.cs
@@ -116,6 +116,45 @@ namespace Discord.WebSocket
             public ulong? GuildId { get; set; }
         }
 
+        private struct ActivityCacheModel : IActivityModel
+        {
+            public string Id { get; set; }
+            public string Url { get; set; }
+            public string Name { get; set; }
+            public ActivityType Type { get; set; }
+            public string Details { get; set; }
+            public string State { get; set; }
+            public ActivityProperties Flags { get; set; }
+            public DateTimeOffset CreatedAt { get; set; }
+            public IEmojiModel Emoji { get; set; }
+            public ulong? ApplicationId { get; set; }
+            public string SyncId { get; set; }
+            public string SessionId { get; set; }
+            public string LargeImage { get; set; }
+            public string LargeText { get; set; }
+            public string SmallImage { get; set; }
+            public string SmallText { get; set; }
+            public string PartyId { get; set; }
+            public long[] PartySize { get; set; }
+            public string JoinSecret { get; set; }
+            public string SpectateSecret { get; set; }
+            public string MatchSecret { get; set; }
+            public DateTimeOffset? TimestampStart { get; set; }
+            public DateTimeOffset? TimestampEnd { get; set; }
+        }
+
+        private struct EmojiCacheModel : IEmojiModel
+        {
+            public ulong? Id { get; set; }
+            public string Name { get; set; }
+            public ulong[] Roles { get; set; }
+            public bool RequireColons { get; set; }
+            public bool IsManaged { get; set; }
+            public bool IsAnimated { get; set; }
+            public bool IsAvailable { get; set; }
+            public ulong? CreatorId { get; set; }
+        }
+
         internal Model ToModel()
         {
             return new CacheModel
@@ -132,18 +171,18 @@ namespace Discord.WebSocket
                             switch (game)
                             {
                                 case RichGame richGame:
-                                    return richGame.ToModel<WritableActivityModel>();
+                                    return richGame.ToModel<ActivityCacheModel>();
                                 case SpotifyGame spotify:
-                                    return spotify.ToModel<WritableActivityModel>();
+                                    return spotify.ToModel<ActivityCacheModel>();
                                 case CustomStatusGame custom:
-                                    return custom.ToModel<WritableActivityModel, WritableEmojiModel>();
+                                    return custom.ToModel<ActivityCacheModel, EmojiCacheModel>();
                                 case StreamingGame stream:
-                                    return stream.ToModel<WritableActivityModel>();
+                                    return stream.ToModel<ActivityCacheModel>();
                             }
                             break;
                     }
 
-                    return new WritableActivityModel
+                    return new ActivityCacheModel
                     {
                         Name = x.Name,
                         Details = x.Details,
diff --git a/src/Discord.Net.WebSocket/Entities/Users/SocketUser.cs b/src/Discord.Net.WebSocket/Entities/Users/SocketUser.cs
index fca36184b..d61fe8ea7 100644
--- a/src/Discord.Net.WebSocket/Entities/Users/SocketUser.cs
+++ b/src/Discord.Net.WebSocket/Entities/Users/SocketUser.cs
@@ -15,7 +15,7 @@ namespace Discord.WebSocket
     ///     Represents a WebSocket-based user.
     /// </summary>
     [DebuggerDisplay(@"{DebuggerDisplay,nq}")]
-    public abstract class SocketUser : SocketEntity<ulong>, IUser, ICached<Model>
+    public abstract class SocketUser : SocketEntity<ulong>, IUser, ICached<Model>, IDisposable
     {
         /// <inheritdoc />
         public abstract bool IsBot { get; internal set; }
@@ -41,9 +41,9 @@ namespace Discord.WebSocket
         /// <inheritdoc />
         public UserStatus Status => Presence.Value.Status;
         /// <inheritdoc />
-        public IReadOnlyCollection<ClientType> ActiveClients => Presence.Value.ActiveClients ?? ImmutableHashSet<ClientType>.Empty;
+        public IReadOnlyCollection<ClientType> ActiveClients => Presence.Value?.ActiveClients ?? ImmutableHashSet<ClientType>.Empty;
         /// <inheritdoc />
-        public IReadOnlyCollection<IActivity> Activities => Presence.Value.Activities ?? ImmutableList<IActivity>.Empty;
+        public IReadOnlyCollection<IActivity> Activities => Presence.Value?.Activities ?? ImmutableList<IActivity>.Empty;
         /// <summary>
         ///     Gets mutual guilds shared with this user.
         /// </summary>
@@ -59,7 +59,7 @@ namespace Discord.WebSocket
         }
         internal virtual bool Update(ClientStateManager state, Model model)
         {
-            Presence ??= new Lazy<SocketPresence>(() => state.GetPresence(Id), System.Threading.LazyThreadSafetyMode.ExecutionAndPublication);
+            Presence ??= new Lazy<SocketPresence>(() => state.GetPresence(Id), System.Threading.LazyThreadSafetyMode.PublicationOnly);
             bool hasChanges = false;
             if (model.Avatar != AvatarId)
             {
@@ -117,6 +117,8 @@ namespace Discord.WebSocket
         ///     The full name of the user.
         /// </returns>
         public override string ToString() => Format.UsernameAndDiscriminator(this, Discord.FormatUsersInBidirectionalUnicode);
+        ~SocketUser() => GlobalUser?.Dispose();
+        public void Dispose() => GlobalUser?.Dispose();
         private string DebuggerDisplay => $"{Format.UsernameAndDiscriminator(this, Discord.FormatUsersInBidirectionalUnicode)} ({Id}{(IsBot ? ", Bot" : "")})";
         internal SocketUser Clone() => MemberwiseClone() as SocketUser;