I have problems with the way the poll handles the answer, comments and question strings. You are not able to use special characters like ' " @ # because it will crash the poll. Also if you accidently add one extra space after a question when making the poll the answer will not be counted.
It has given me lots of troubles... This, and the fileright problems where NBAustin is talking about. I have people using bad comments as well and this has resulted in complete deletion of the poll - there's no other way to remove it