Why track by IP? Surely by username would be much easier. Only registered users allowed to vote, and once the username has casted a vote that's done.

Hm, I often wonder about all these plugins. Aren't Gossamer Threads planning something like this? What are the current to-do list of GTForum. I think it would be a good idea for GT to post is publicaly, so that people don't waste their time creating plugins that might be replaced.

- wil