<p>I think there's been some good discussion here.  Let me add 1 small point / suggestion.  If the original question were kept (e.g., @Wayne's option #2), the community moderator will keep popping up the question from time to time, which can be kind of <a href="https://stats.meta.stackexchange.com/questions/1176/how-exactly-does-community-randomly-decide-to-bump-posts">annoying</a>.  If the question constitutes a misunderstanding that people may make again in the future, and the comments lead to a sufficient clarification, then those comments could be summarized as an answer and the answer marked as 'community wiki'.  In this way, the clarification will become more salient to someone who stumbles across the post in the future, the post will remain as a permanent record (as we prefer), you wouldn't be stealing someone else's credit, and it wouldn't keep popping up just because there isn't an 'answer'.  </p>
