This morning I saw that one of my answers on SO had been un-accepted; it was a valid answer to a question asked by this individual several months ago.
His profile description now says only, "please delete me", and it looks like he un-accepted answers to several of his questions before quitting, apparently without any good reason.
I'm not one to cry foul over 15 points, but there were other unaccepted answers by users who might feel the effects. Is there a system in place to compensate for this similar to the one that reverses serial downvoting?