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What the question says.

EDIT I am asking this because the revision history for this answer here seems to be missing the original posted answer (which I saw and clearly remember).

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That's a good question. I know I've seen it done by Jeff, but I don't see anything available to me. It may be a dev-team-only function. –  mmyers Jul 21 '10 at 19:41
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Rewriting history and changing the time stream? That sounds exactly like something Jeff would do. –  Grace Note Jul 21 '10 at 19:44
    
I flagged a couple posts for moderator attention that accidentally included passwords in code snippets, and I've never seen the revision wiped out, so I assumed moderators can't do it. Naturally the dev team can –  Michael Mrozek Jul 21 '10 at 19:49
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@Grace Note: To be fair, it was one of those old rollback wars. 50 revisions of nothing but rollbacks. –  mmyers Jul 21 '10 at 20:03
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@Grace Jeff or a Terminator. Whoa. Suddenly it all makes sense. –  devinb Jul 21 '10 at 20:03
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@mmyers I don't doubt his good intentions, but Jeff has a very long history of altering the flow of events. Or, at least, for now he has such a history... –  Grace Note Jul 21 '10 at 20:13
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I would certainly hope that someone can delete revision history, if only for the event of an accidentally pasted username/password in a code snippet. –  Mark Rushakoff Jul 21 '10 at 22:18
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@Mark: can't delete memories or Google results. If you post your password, you'd better change it ASAP. –  Shog9 Jul 21 '10 at 23:36
    
In Wikipedia, deleting revisions so hard even the low-level admins can't see it is called Oversight. –  Andrew Grimm Aug 15 '10 at 2:31

3 Answers 3

up vote 7 down vote accepted

No, neither moderators nor high-rep users have the ability to delete revisions. The dev team can, as long as there's a subsequent revision (they can't delete all the revisions for a given post)

This comes up when users accidentally post their password or other confidential information. You can edit the post to remove it (creating a new revision), flag it for mod attention, and a mod will contact a dev to have them delete the original revision. You can tell when this happens because revision 2 will show up as revision 1 in the list, but both revisions still have entries in the history, so revision 2 will now be empty. For example:

Screenshot of the revision history

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You know that your (accepted) answer isn't answering the question? Why are you posting it then? (SCNR) –  Paŭlo Ebermann Apr 18 '12 at 19:29
    
@PaŭloEbermann I was completely confused for a good 10 seconds before I figured out what was going on –  Michael Mrozek Apr 18 '12 at 19:32

I am asking this because the revision history for this answer here seems to be missing the original posted answer (which I saw and clearly remember).

This is most likely because the OP edited it within the 5 minutes editing grace period. In that case there is no revision, and the old revision is modified instead.

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High-rep users cannot delete revisions from the history. Of course I consider myself high-rep, but that is a discussion for a different question.

According to @mmyers, it is not a diamond-mod ability either.

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mmyers appears to believe that it is dev-team-only. Which means DB-Access most likely. –  devinb Jul 21 '10 at 19:42
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@devinb: They use Access as DB? shiver –  Ladybug Killer Jul 21 '10 at 19:53
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@Ladybug: That sounds frighteningly like my job. –  mmyers Jul 21 '10 at 20:00
    
@mmyers: I pity you. And it does not happen very often that I pity someone. –  Ladybug Killer Jul 21 '10 at 20:10
    
@Ladybug: Actually, I've been pulled off of Access duty. Now my main complaint is that we have to use Visual SourceSafe. –  mmyers Jul 21 '10 at 20:22
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@mmyers Did you do something to deserve this punishment? Is this just a hazing phase? I can't understand such willful cruelty. –  devinb Jul 21 '10 at 20:23
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@devinb: And I use IE7 on Vista. Would you like to know why I hang out on SO as much as humanly possible? :D –  mmyers Jul 21 '10 at 20:28

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