I noticed that my reputation points go through roller coaster rides from time to time. During the last couple of days, it widely fluctuated between 1025 and 1263. The main StackExchange top users web page is still showing that my reputation as 1263. Are our moderators aware of these irregularities? What is the reason for these wild reputation fluctuations?
Something similar happened to me several days ago. I had a sudden large jump in reputation, and the summary of recent activity showed what look like one person simultaneously upvoting every answer I had ever posted. A day or two later it reverted to its original levels, and the reputation history showed no record of the surge ever happening. Of course, it could be that the user just took back all his votes, but it seemed odd.