( Update: Note, I am talking about voting on polls and not about voting on nodes. I think that is what the original noder was talking about but I think at least one of the replies is talking about voting on nodes. )

A few people have said that voting isn't checking IP addresses. Well, if it isn't, then it sure has a strange way of not doing it. I can vote on a poll twice using the same login so long as I do it from different IP addresses (and no, voting doesn't set a cookie, I have prompting for that turned on). If I try to vote twice from the same computer, even when using different logins and different browsers (which don't share cookies), I'm told "You have already voted from that IP (194.246.18.106)" (IP address changed to implicate the innocent).

A reasonable enhancement would be to allow each logged-in user to vote once for each poll no matter what IP address is used and to allow AnonyMonk to vote only from an IP address that hasn't already been used. But that means that the average person that has only one login and one IP address will now be able to vote twice so long as they vote anonymously first.

So I actually find the current situation a bit more satisfactory in at least some ways (especially since it is already convincing several people that it isn't checking IP address) so I don't really see much point in spending development time on something so minor. YMMV. (: