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.
In our discussion of academic papers, Lukeprog argued that lots of smart people preferred to read ideas in academic paper format. Based on my observations, I mostly disagree. But that's just anecdotal evidence. Let's use Science!
Suppose someone at the Singularity Institute thought up a cool new idea: it could be about rationality, Friendly AI, decision theory, making money, or any of the other topics we discuss here on LW. Explaining it takes about ten pages, and it's nontechnical enough that it can be explained to a general audience of non-mathematicians. Which of the following explanations would you be most likely to actually sit down and read through?
EDIT: To state the obvious, this poll will be biased in favor of blog postings, since it's on a blog. However, I still think it'll provide data that's much better than anecdotal guessing. I've emailed a few rationalist mailing lists to try and counteract this effect.