Use nick property of the identifier, rather than string splitting

justforfun.py

@@ -30,7 +30,7 @@ class Justforfun(BotPlugin):
 
     def callback_message(self, message):
         """ Listens for rude or nice things about the bot """
-        if str(self.bot_identifier).split('!')[0] not in message.body:
+        if self.bot_identifier.nick not in message.body:
             return
 
         if self.good.search(message.body):