Sub noticed he's not able to remove polls or do a few other moderation type things with polls (like changing whether users can change their vote). After researching this, the default behavior is to only allow those things if you have permission to moderate the board that the poll is in. For example, Sub can't moderate his poll in this thread, but he can in threads in the Tourney board.
Can anyone confirm if it has always been this way? It's possible that the upgrade lost a customization on this, and in that case I can fix it. But if it's always been this way and there's no need to change it, I'd rather leave well enough alone.