Hide meaningless real names

lib/irc.js

@@ -638,3 +638,20 @@ export function forEachChannelModeUpdate(msg, isupport, callback) {
 		callback(mode, add, arg);
 	}
 }
+
+/**
+ * Since the realname is mandatory, many clients set a meaningless realname.
+ */
+export function isMeaningfulRealname(realname, nick) {
+	if (!realname || realname === nick) {
+		return false;
+	}
+
+	if (realname.toLowerCase() === "realname") {
+		return false;
+	}
+
+	// TODO: add more quirks
+
+	return true;
+}