He was always acting stupid back when I knew him as "Mustang", and I know I kicked him off a server that I was moderating once. He seemed to start off alright, albeit a little rocky, as Path and I didn't have any issue with him, but then from what I can tell, a few people had some buried grudges against him and went after him when he started criticizing people. He then greatfully adopted his "handicap persona" and now he is just a major annoyance.
I don't have any opinion on what should happen to him unless he gets worse. If he wants to turn around and be "normal", then I'll gladly let him do that. If he wants to carry on and be stupid, I'm not going to miss him when he trips and gets banned.