I would at least make one comment saying "Vote in the options below" and then have the options as replies to it. Specify that any discussion should occur outside of that thread. The way it is now, the various poll options are scattered haphazardly throughout the comments and are hard to find.

You should also include an extra reply as a karma sink, so people can balance out the upvotes with downvotes. Not having a karma sink actually gave me a note of reluctance to vote in the poll, which suggests including one will remove one barrier to participation.