voteban is a bad idea
I'll give you an example situation
there are two people in a server, MLG1 and MLG2
MLG1 and MLG2 are both in the same clan, so they have sort of a special interest for each other and hate everyone who doesn't love their clan
ARES1 comes into the server, and notices that there are two MLG members here, and says "hi!"
the MLG guys start a voteban against him, obviously they succeed
and so, ARES1 is banned for however long just because these two friend whores didn't like him
poor ARES1
he wasn't even doing anything wrong