As someone who fights everyday in maps with him, I would request him not being banned as his player behavior is usually golden, and I have never seen him TK on purpose when I play with him. As for the things he types in chat, I have a hard time getting offended, and it is part of the amusement to read when fighting is slow or I am dead. At the worst he deserves a couple day mute, at best I say let him be and leave him alone.
I may disagree with some of the things he says, but he has not done anything I have seen to deserve a full-blown Ban as his playing is golden.