Bug! If you alter an answer back that was accepted its erased!
OK found another bug here. This one is harder to show. I was trying to alter someones answer from accepted back to an unecepted answer for some reason when I did that the answer was deleted! Here's the question: https://www.ifixit.com/Answers/View/2309.... The OP had posted a picture in the answer which he also marked as the accepted answer (clearly it wasn't).
Is this a good question?