A precedent for answering your own questions

One rule I really like on askreddit is that you can't out your own answer within the body of your question post. Rather, you're encouraged to answer in a comment. It prevents soap-boxing and "story time", and allows discussion of your answer to be nicely compartmentalised from discussions of everyone else's answers.

While I don't at all think this should be a rule for ask-style posts on Tildes, I think it's a great guideline. I always try to do this myself, and I thought I should put it out there and see if it's something the rest of our community would adopt. Thoughts?