Earlier quoted context omitted.
you're a superstar! Edit: Looks like I'm down to -1 now. I think either bots are randomly pressing buttons, your voting is rigged (or ran()dom) or my suggestion just sucked :) Nice work building it though.
I did notice a few ips voting excessively. I don't think they are bots, probably just trolls. I should implement ip limits. I had too much faith in the Internet - Evidently I'm wrong :p
Giving visitors a vote button will shake your faith in the internet. Giving unregistered visitors a text field that doesn't require approval before being listed, that's just downright dangerous! :P