React when some special users are mentioned

main.js

@@ -30,28 +30,47 @@ db.defaults({
             "485109695846023209"
         ]
     },
-    specialUsers: ["141880968800763905", "307897683849510912", "335898304472678402"],
+    specialUsers: [
+        "141880968800763905",
+        "307897683849510912",
+        "335898304472678402"
+    ],
+    reactableMentionedUsers: ["307897683849510912", "335898304472678402"],
     guides: {},
     editors: {
         roles: ["484046157971193866", "305844721622712322"],
-        users: ["307897683849510912", "170116346095468545", "335898304472678402"]
+        users: [
+            "307897683849510912",
+            "170116346095468545",
+            "335898304472678402"
+        ]
     }
 }).write();
 
 const client = new Discord.Client();
 
 function isAuthorised(member) {
-    if(db.get("editors.users").includes(member.id).value())
+    if (
+        db
+            .get("editors.users")
+            .includes(member.id)
+            .value()
+    )
         return true;
-    if(db.get("editors.roles").intersectionWith(member.roles.keyArray()).isEmpty().value())
+    if (
+        db
+            .get("editors.roles")
+            .intersectionWith(member.roles.keyArray())
+            .isEmpty()
+            .value()
+    )
         return false;
     return true;
 }
 
 const commands = {
     "make guide": (msg, s) => {
-        if(!isAuthorised(msg.member))
-            return;
+        if (!isAuthorised(msg.member)) return;
         let content = s.substring("make guide ".length);
         let guideName = content.substring(0, content.indexOf("\n")).trim();
         let guideContent = content.substring(content.indexOf("\n")).trim();
@@ -63,8 +82,7 @@ const commands = {
         );
     },
     "delete guide": (msg, s) => {
-        if(!isAuthorised(msg.member))
-            return;
+        if (!isAuthorised(msg.member)) return;
         let guideName = s.substring("delete guide ".length).trim();
         if (
             !db
@@ -98,11 +116,28 @@ const commands = {
 
 client.on("ready", () => {
     console.log("Ready!");
-    client.user.setActivity("@NoctBot help");
+    client.user.setActivity("@NoctBot help", { type: "PLAYING" });
 });
 
 client.on("message", m => {
-    if (m.mentions.users.size == 0) return;
+    if (m.author.id == client.user.id || m.mentions.users.size == 0) return;
+
+    if (
+        !db
+            .get("reactableMentionedUsers")
+            .intersectionWith(m.mentions.users.map(u => u.id))
+            .isEmpty()
+            .value()
+    ) {
+        const emoteId = db
+            .get("emotes")
+            .get("angery")
+            .randomElement()
+            .value();
+        m.react(client.emojis.find(e => e.id == emoteId));
+        return;
+    }
+
     if (m.mentions.users.first().id == client.user.id) {
         let content = m.cleanContent.substring(
             `@${client.user.username} `.length