I have gotten a few "bursts of downvotes" in the past few weeks that look something like this in my inbox.

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I would assume the site would automatically catch this and reverse it, as happens with "bursts of upvotes" (which I have had happen only once) that look like this.

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I am wondering: what is it that triggers or doesn't trigger the automatic reverse voting?

From the few examples that pertain to myself, my best guess is that it's four or more votes in either direction that trigger it.

It looks like the mod Xander has looked into this before, but I didn't see any of the reversals he was speaking of. I suppose I don't really know what "raise a flag" means either.

Sorry if I have asked too many questions. Just trying to understand how this works.

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  • $\begingroup$ Re 'raise a flag': choose one of your downvoted questions and open it. At the foot of the question is a little row of actions you can click (it's where 'edit', 'share' and 'follow' live). 'Flag' is an option there. Click on it and one of the options will be to attract mod attention and give a reason for your request. Doing that is 'raising a flag'. $\endgroup$
    – postmortes
    Mar 6 at 18:02
  • 4
    $\begingroup$ The details of the serial vote detection algorithm are a secret---not even moderators know precisely what triggers an automatic reversal. Empirically, one or two votes will basically never trigger an automatic reversal, and 10 votes in 30 seconds almost certainly will. $\endgroup$
    – Xander Henderson Mod
    Mar 6 at 19:23
  • 3
    $\begingroup$ Repeating what I said in chat: "[I]t usually takes 24 hours [for the automatic reversal to kick in]. If you see that kind of pattern in the future, and it isn't reversed in 48 hours, raise a flag." $\endgroup$
    – Xander Henderson Mod
    Mar 6 at 19:24


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