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How many votes are needed to undelete?

Whenever I've checked undelete votes required, it always appears to be three. To check, find any deleted question with undelete votes, read the tooltip for the number next to the undelete button. Are undelete votes not scaled similarly to delete votes?

What disorders and diseases commonly afflict programmers?
This currently has a score (sum of question and answers, including negative answers) of +181. At 20:1 that's 9 extra votes, plus the original 3 means 12 to delete. Yet just 3 undelete votes are required to reverse that decision.

Should the number of undelete votes necessary be somewhere between the number of delete votes, to half that?

For example, should 6 votes be required for that question? or 9? or the same count of 12? Less undelete votes than delete votes makes sense, in a way.

That question is perhaps a poor example. It was actually deleted at 11 votes, but the last was a moderator. It also had 9 months to accumulate votes and is in that class of programmer-but-not-programming questions that attracts so much attention on SO. OTGH, that it did attract so much attention and still was closed, stayed closed for a long time as off-topic, and yet was finally deleted, may make it a great example.


Very good point - we'll be scaling the number of votes required to undelete a question, as well.

The number of undelete votes required will currently scale at a 30:1 score to extra vote ratio. For example, a deleted question with a combined score + answers' score of 90 will require:

3 base votes
+ 3 scaled votes (90 score/30 ratio)
= 6 undelete votes to undelete the question.

  • Please don't do that, while I don't want the question @The mentions to be resurrected, there are others that got hastily deleted before the vote scale change, that will now be hard to bring back to life. Jun 7 '10 at 22:02
  • @Lance: Flagging for moderator attention in that case, which should increasingly diminish, seems appropriate.
    – Gnome
    Jun 11 '10 at 14:57
  • This answer is out of date; more recent answer is at meta.stackexchange.com/a/51071.
    – user259867
    Jan 4 '15 at 18:19