But then you know that people would start making sock puppets to gather votes against other people and we'd just get all sorts of little wars on here and who knows who'd survive in the end or if this forum would even be worth anything after all that.
If we did it by number of posts then someone could just jhawk their puppet into a voter. Time would be better but I still see people creating puppets and playing with them a bit till the time is up and the puppets can vote.