Yesterday, a sudden loss of 6 rep led me to discover that my top 3 meta questions were downvoted:

Now, a sudden gain of 6 rep leads me to believe that the downvotes were reversed... but it looks like they were undone manually, rather than reversed by the vote fraud script:

How were yesterday's downvotes undone today? I haven't edited my questions since receiving the downvotes. Shouldn't they have been locked in after only 5 minutes?

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    Don't they put you through some sort of moderator training? Shouldn't you have every answer to every question (at least meta related)? – M.Babcock Mar 31 '12 at 3:34
  • Perhaps the culprit was nice enough to bump-edit my posts, take their votes out and reverse the edits to destroy the revisions and make it seem as if nothing really happened. – BoltClock's a Unicorn Mar 31 '12 at 3:38
  • Shouldn't that be visible in the edits though? And by three different people, really? Seems unlikely. – M.Babcock Mar 31 '12 at 3:39
  • @M.Babcock: You can silently remove a revision by manually undoing the edits you made, or by saving the previous revision, within the 5-minute grace period. – BoltClock's a Unicorn Mar 31 '12 at 3:40
  • @BoltClock: I just tried this. Rolling back doesn't work. Undoing the edit manually does. Weird. – Dennis Mar 31 '12 at 3:42
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    @BoltClock - That screams like a bug to me. Imagine a similar situation with svn or cvs... this would not be pretty for their development teams at all. – M.Babcock Mar 31 '12 at 3:43
  • @Dennis: That has already been established elsewhere. A rollback is considered another edit. You do have to do it manually. – animuson Mar 31 '12 at 3:44
  • @animuson - Is that true of rollbacks of another user's edits as well? – M.Babcock Mar 31 '12 at 3:45
  • @M.Babcock: No, this applies only to your own edits. It doesn't matter what post you edit, but the revision has to be owned by you for it to work. As far as I can tell, this is a side effect of having a 5-minute grace period of not saving revisions. – BoltClock's a Unicorn Mar 31 '12 at 3:46
  • @animuson: So this is by-design? – Dennis Mar 31 '12 at 3:47
  • Then presumably each user would have had to rollback their edits seemingly simultaneously? Highly unlikely. -- I guess this would be to the point of your edit. – M.Babcock Mar 31 '12 at 3:47
  • Hmmm... that seems a far stretch to be what's caused this, though. Possible, I guess... to remove the votes without giving themselves away? – Andrew Barber Mar 31 '12 at 3:48
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    @M.Babcock: The moderator training is rather intensive, but it's what you might call "trial by fire". – Cody Gray Mar 31 '12 at 3:49
  • @TheEstablishment - Again, not being a mod I wouldn't know but certainly there is a knowledgebase to leech? (Probably not though... my company doesn't have on either). BTW do you think @_Cody (minus the _) would work? I always wondered since it is an alias from a different site. – M.Babcock Mar 31 '12 at 3:50
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    @Mayank swami: What are you talking about? Your comment makes absolutely no sense. – BoltClock's a Unicorn Mar 31 '12 at 6:30

Looking at it now (or any time, when hovering the timestamp to see the exact time when that still displays things like "5 minutes ago"), makes clear it's the fraud script after all. It runs each night at 3:00 AM:

Still odd, as it used to be named "reversed", but then didn't indicate on which post this happened:

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    My deduction from this is that there simply weren't enough reversed votes for them to be collapsed into a single "Serial downvoting reversed" entry. As far as I've seen, concentrated vote fraud reversals still display as "Serial upvoting/downvoting reversed". – BoltClock's a Unicorn Jun 10 '12 at 9:13
  • Ah, that might very well be true. (I was about to tell you about another example that came up today, but now I see it's you who pointed me from that post here. ;-)) – Arjan Jun 10 '12 at 9:17

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