Don't mistake encouraging bad behaviour with players abusing something out of pure choice. Players abuse things all the time because they're lazy or selfish. It is not unique to the vote kick system and most certainly not unique to the game. No system is perfect and there will always be those who take advantage of that.
I also think "encouraging" is a very strong word in this context. I have seen people abuse the vote kick system but in my experience it's very rare. If it really encouraged bad behaviour then it would be pretty common.
