No reason as in I didn't join the server and do anything.
I say judging by your posts and horrible attitude on the forums, you're not magically a different person outside of the forums. We can ban you from our servers for whatever reason we wish, deal with it. Just look at davidos/It's Boshy Time!, he's a well known idiot and he acts
EXACTLY the same in-game as he does on the forums. Look at myself, or the hundreds of other forumers who act the same in-game as they do on the forums. If your reputation is crap, that's your fault, not ours.