diff --git a/lib/Client.js b/lib/Client.js
index 32079551e..4be94f285 100644
--- a/lib/Client.js
+++ b/lib/Client.js
@@ -4,6 +4,7 @@ const Base = require("./structures/Base");
 const Channel = require("./structures/Channel");
 const Collection = require("./util/Collection");
 const Constants = require("./Constants");
+const emitDeprecation = require("./util/emitDeprecation");
 const Endpoints = require("./rest/Endpoints");
 const ExtendedUser = require("./structures/ExtendedUser");
 const GroupChannel = require("./structures/GroupChannel");
@@ -323,6 +324,7 @@ class Client extends EventEmitter {
     */
     addMessageReaction(channelID, messageID, reaction, userID) {
         if(userID !== undefined) {
+            emitDeprecation("REACTION_USER");
             this.emit("warn", "[DEPRECATED] addMessageReaction() was called without an \"@me\" `userID` argument");
         }
         if(reaction === decodeURI(reaction)) {
@@ -517,12 +519,14 @@ class Client extends EventEmitter {
     */
     createChannel(guildID, name, type, reason, options = {}) {
         if(typeof options === "string") { // This used to be parentID, back-compat
+            emitDeprecation("CREATE_CHANNEL_OPTIONS");
             this.emit("warn", "[DEPRECATED] createChannel() was called with a string `options` argument");
             options = {
                 parentID: options
             };
         }
         if(typeof reason === "string") { // Reason is deprecated, will be folded into options
+            emitDeprecation("CREATE_CHANNEL_OPTIONS");
             this.emit("warn", "[DEPRECATED] createChannel() was called with a string `reason` argument");
             options.reason = reason;
             reason = undefined;
@@ -914,6 +918,7 @@ class Client extends EventEmitter {
                     content.messageReference.failIfNotExists = undefined;
                 }
             } else if(content.messageReferenceID) {
+                emitDeprecation("MESSAGE_REFERENCE");
                 this.emit("warn", "[DEPRECATED] content.messageReferenceID is deprecated. Use content.messageReference instead");
                 content.message_reference = {message_id: content.messageReferenceID};
             }
@@ -2764,6 +2769,7 @@ class Client extends EventEmitter {
             options.after = after;
         }
         if(options.before) {
+            emitDeprecation("GET_REACTION_BEFORE");
             this.emit("warn", "[DEPRECATED] getMessageReaction() was called with a `before` parameter. Discord no longer supports this parameter");
         }
         return this.requestHandler.request("GET", Endpoints.CHANNEL_MESSAGE_REACTION(channelID, messageID, reaction), true, options).then((users) => users.map((user) => new User(user, this)));
diff --git a/lib/structures/Member.js b/lib/structures/Member.js
index 9897f16f2..57c23657e 100644
--- a/lib/structures/Member.js
+++ b/lib/structures/Member.js
@@ -1,6 +1,7 @@
 "use strict";
 
 const Base = require("./Base");
+const emitDeprecation = require("../util/emitDeprecation");
 const Endpoints = require("../rest/Endpoints");
 const User = require("./User");
 const VoiceState = require("./VoiceState");
@@ -160,6 +161,7 @@ class Member extends Base {
     }
 
     get permission() {
+        emitDeprecation("MEMBER_PERMISSION");
         this.guild.shard.client.emit("warn", "[DEPRECATED] Member#permission is deprecated. Use Member#permissions instead");
         return this.permissions;
     }
diff --git a/lib/structures/PrivateChannel.js b/lib/structures/PrivateChannel.js
index a2a41216b..e338e7134 100644
--- a/lib/structures/PrivateChannel.js
+++ b/lib/structures/PrivateChannel.js
@@ -2,6 +2,7 @@
 
 const Channel = require("./Channel");
 const Collection = require("../util/Collection");
+const emitDeprecation = require("../util/emitDeprecation");
 const Endpoints = require("../rest/Endpoints");
 const Message = require("./Message");
 const {GatewayOPCodes, ChannelTypes} = require("../Constants");
@@ -212,6 +213,7 @@ class PrivateChannel extends Channel {
     */
     removeMessageReaction(messageID, reaction, userID) {
         if(userID !== undefined) {
+            emitDeprecation("DM_REACTION_BEFORE");
             this.emit("warn", "[DEPRECATED] removeMessageReaction() was called on a PrivateChannel with a `userID` argument");
         }
         return this.client.removeMessageReaction.call(this.client, this.id, messageID, reaction, userID);
diff --git a/lib/util/emitDeprecation.js b/lib/util/emitDeprecation.js
new file mode 100644
index 000000000..fc959c26f
--- /dev/null
+++ b/lib/util/emitDeprecation.js
@@ -0,0 +1,19 @@
+const warningMessages = {
+    CREATE_CHANNEL_OPTIONS: "Passing parentID or reason string arguments directly to createChannel() is deprecated. Use an options object instead.",
+    DM_REACTION_REMOVE: "Passing a userID when using removeMessageReaction() in a PrivateChannel is deprecated. This behavior is no longer supported by Discord.",
+    GET_REACTION_BEFORE: "Passing the before parameter to getMessageReaction() is deprecated. Discord no longer supports this parameter.",
+    MEMBER_PERMISSION: "Member#permission is deprecated. Use Member#permissions instead.",
+    MESSAGE_REFERENCE: "Passing the content.messageReferenceID option to createMessage() is deprecated. Use the content.messageReference option instead.",
+    REACTION_USER: "Passing a userID other than \"@me\" to addMessageReaction() is deprecated. Discord no longer supports this parameter."
+};
+const unknownCodeMessage = "You have triggered a deprecated behavior whose warning was implemented improperly. Please report this issue.";
+
+const emittedCodes = [];
+
+module.exports = function emitDeprecation(code) {
+    if(emittedCodes.includes(code) ) {
+        return;
+    }
+    emittedCodes.push(code);
+    process.emitWarning(warningMessages[code] || unknownCodeMessage, "DeprecationWarning", `eris:${code}`);
+};