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My reputation listing is showing that on Mar 4 and 5, some of my answers got unaccepted, but when I go to those answers, they are still showing as accepted -- they still have the green check mark. Can somebody please explain what is happening with my profile?

Reputation event list for Mar 4

Here are three of the answers that are listed above:

Getting MD5 and SHA-1

Creating a base-64 string from NSData

My custom font is not displaying

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  • 5
    I've seen this before. It's a bug in the serial vote reversal script. A whole bunch of votes from this user to you were reversed. Accepts count as "votes". But the checkmark display on the answer seems to be cached and is not updated. If you mouse over the checkmark, it says "loading when this answer was accepted..."
    – Mysticial
    Mar 8, 2013 at 10:35
  • Perhaps you answered a lot of one user's questions correctly (within a short period) and it decided that the user was serial accepting your answers?
    – BDM
    Mar 8, 2013 at 10:36
  • @Mysticial: Looking at the timeline for one question confirms the answer is indeed unaccepted. Mar 8, 2013 at 10:37
  • @Mysticial: And there is a second user involved as well. In total, 5 questions have been unaccepted between these two, and on both their profiles the 'accepted' status is cached as well. Mar 8, 2013 at 10:42
  • @ProfPickle: Sure, but why are they still marked as accepted? That is the problem at hand here. Mar 8, 2013 at 10:49
  • @Mart Because someone stayed up too long at night and wasn't thinking straight. I would suggest putting in a bug report :)
    – BDM
    Mar 8, 2013 at 10:51
  • @ProfPickle: Good thing the OP put a bug tag on his post then. :-P Mar 8, 2013 at 10:52
  • @Mart Sometimes I need to sleep more and think less.
    – BDM
    Mar 8, 2013 at 10:55
  • 3
    And how did a user who hasn't been on the site in nearly 2 years either unaccept an answer or do any serial upvoting? :/
    – Wooble
    Mar 8, 2013 at 14:53
  • hello.. any moderator or stackexchange developer looking into this?
    – Saurabh
    Mar 9, 2013 at 12:26
  • anyone looking into this bug?
    – Saurabh
    Mar 13, 2013 at 8:59

1 Answer 1

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The giveaway here is the last entry shown in that rep history: "Serial upvoting reversed" (now appears as "voting corrected"). When extremely unusual voting patterns are detected between two users, all votes between them may be revoked - including the Accept votes.

That doesn't alter the Accept status - the answer was still marked as accepted and we don't change that. But it does invalidate all reputation earned by both the asker and answerer for accepting the answer.

See also: How should sockpuppets be handled on Stack Exchange?

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