Uhhhhh.... No. Never banned. Called to the principal's office a time or two, but never banned. If expressing my opinion is considered "causing trouble" then I am guilty. My opinion is my opinion. You may or may not agree with it, either way, I accept that. But I'd much rather have others express their opinion no matter how much at odds it is with mine. Otherwise, life would be boring, don't you think? It's too bad not everybody shares that consideration.
Enjoy the game.