People blow the potential for abuse with this system way out of proportion. I've witnessed vote kick abuse maybe two or three times in the years since it was implemented in WoW (and, incidentally, all of those times I was able to prevent the abuse because it requires my participation as well), and they fine tuned the system there so that it's now nigh on impossible to abuse it. All Squeenix has to do is copy WoW's vote kick system and they're golden.