The entire structure of society will crumble if you start doing unjust things because "for all you know" others might be doing them too. Primitive cultures burned people at the stake because "for all they knew" they were witches. Innocent people have been hanged by mobs because "for all they knew" the person was guilty.
All cheating on a poll like this does is make us look non-credible. Heck a savy person who had an agenda could just allow multiple votes and log the IP addresses simply to expose the side they don't like for multiple votes. It doesn't reflect well on us folks. Vote in the poll and spread the word. We don't need to cheat to win.