I say go for it. I would say write the question and then immediately post the answer as an answer. I would hold off on accepting your answer until other people have a chance to chime in with what they think might be best.
Try it with a few questions, see how you do. If your questions are good and interesting, then you will likely get multiple answers or up votes to the question. If your questions are not interesting, then you will not get any other answers or up votes (up votes to the answer say little about the question). If you are not getting answers/votes, then it is probably an indication that you should stop.