MyBB Community Forums

I know that Moderators etc. can edit polls but would there be a way (or a plugin) that allows ordinary registered members to edit their own poll?

Reason: I have a big thread on my forum like a club and every 3 days they hold a little competition and every 4-5 days they have to change the poll but they always ask a moderator to do so and its getting the mod annoyed so is there any way?

Well, considering about anything can be done through a plug-in, I'm sure it can. You should probably post a request here if you want one made.