unfortunately, in this kind of medium, not everyone will agree, and personalities will clash.
if he's saying something thats really bad and a bannable offense, then can you pm it to me, so i can see. but if its just a question of personalities maybe not meshing so well, it might be easier for you to just block his posts. (you can do this in your user cp area).
at this time, im sorry but im unable to ban people because of personal differences
, unless they do something thats deserving of being banned.