Ehm. Isn't kicking them as they join a server just like a perma ban? It's just the same, since as long as they're blacklisted (permanently) they will not join the server. Now, why use auto-kick instead of perma-ban? Because perma-ban doesn't exist and auto-kicking can be simulated with a 'bot', thus fixing our problems hopefully without annoying the devs about it. Ta-Da! Also, the command that the 'bot' uses should take a few seconds to change (from kick to ban) if you really insist upon it, although it's probably just for one week. Perhaps I should try hosting a server and look around for its files/logs so as to understand how it works and test the auto-kicking on myself hehe.