Quote Originally Posted by Flying Mullet View Post
How many registrations do you receive in a day or week? If it's not too many, you can require moderator/administrator approval for all new accounts and see if you can spot the troll's new accounts this way and not approve them.
This seems like the best idea, though even then, depending on how great of lengths he's willing to go to troll your forum, there's always the chance that he's going to get back in. But I say this way he'll more than likely get tired of having to make a new email, find a new working proxy, etc. faster.