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What circumstances can cause a question or answer to be deleted, and what does that actually mean?

  • How can a post be deleted?
  • When can't I delete my own post?
  • Can I see a list of my deleted posts?
  • How can I undelete one of my posts?
  • What does deletion mean for a post?
  • How do votes to delete work?
  • What are the criteria for deletion?
  • What else should I know about deleted posts?
  • If I flag my question with a request to delete it, what will happen?

For more information, see the articles about deleted questions and deleted answers in the Help Center.

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share|improve this question
9  
See also When should I vote to delete? – Robert Harvey May 3 '13 at 20:48
    
How long does a deleted post stay there before it actually becomes deleted (404, page not found)? – narawagames Jun 5 at 21:47
up vote 216 down vote accepted

How can a post be deleted?

By a user:

  1. You can typically delete your own posts at will; for exceptions, see When can’t I delete my own post? below. To delete a post, just use the delete link below it.

  2. Moderators can delete any post instantly.

  3. Users with reputation ≥ 2k (more precisely, the edit privilege; 1k on beta sites) can cause automatic deletion of a post if they choose recommend deletion from within the low-quality review queue.

  4. Users with reputation ≥ 10k (more precisely, the moderator-tools privilege; 2k on beta sites) can vote to delete questions that have been closed/on-hold for 48 hours. It takes three votes to delete; more if the question is popular, but ten votes at most.

  5. Users with reputation ≥ 20k (more precisely, the trusted-user privilege; 4k on beta sites) are not subject to the 48-hour waiting period for deleting closed questions with a score of −3 or lower. They may also delete answers of score −1 or lower, unless they are accepted. It takes three votes to delete an answer.

By the system:

  1. The system will automatically delete any post flagged six times as offensive or spam.

  2. The system will automatically delete closed (not as a duplicate), unlocked questions with zero or negative score having no positively scored or accepted answers or pending reopen votes, that were closed 9 or more days ago and haven't been edited in the past 9 days.

  3. The system will automatically delete unlocked, unanswered questions that have negative score after 30 days.

  4. The system will automatically delete unlocked, unanswered questions with score of zero (or one if the owner is deleted), fewer than 1.5 views per day on average, and fewer than two comments after 365 days.

  5. The system will automatically delete any question (and its answers) or answer with a negative score when its owner’s account is deleted.

  6. The system will automatically delete questions migrated to other sites after 30 days. Note that this applies only for the original question created on the original site (the “migration stub”), not the question newly created on the other site as a result of the migration. Questions autodeleted under this criterion still have their revision histories visible to everyone, and links to them redirect to the new question instead of showing an error page.

  7. Answers with zero or negative score that receive six recommend deletion reviews in the low-quality-posts review queue are automatically deleted “in review”. Answers can be kicked into this queue either automatically or with very low quality and not an answer flags, and can be removed from the queue if enough looks OK reviews are cast against them.

When can’t I delete my own post?

You can’t delete answers that have been accepted.

You can’t delete your own question when it:

  • has an upvoted answer, or
  • has an accepted answer, or
  • has multiple answers (even if there are no upvotes)

You can’t delete any of your questions or answers if you haven’t registered your account (that is, associated an OpenID with it).

Can I see a list of my deleted posts?

Yes, but only deleted posts which has been created in the last 60 days. Full list of deleted posted won't likely happen. (Users with reputation >=10k can search among their deleted posts using deleted:1.)

How can I undelete one of my posts?

Self-deleted posts can be viewed and undeleted by their original authors. However, self-deleted questions cannot be edited by their authors unless undeleted first. Self-deleted answers can be edited by the author without undeleting. Normally, if your deleted post is not self-deleted, you can't undelete it yourself (though you may be able to vote to undelete). An exception: if an answer is deleted from Low Quality review queue by "Recommend Deletion" votes, without three trusted users voting to delete, then it can be undeleted by the author.

If your post was deleted by trusted users, it will require three undelete votes to be undeleted - politely asking for this on Meta may attract the necessary votes if you make a good case for why the question should be restored.

If your post was deleted by a moderator, you can flag one of your other posts and write a note in the "other" section explaining the situation and requesting undeletion.

Note: deleted questions do not appear in search results, so you if you wish to later undelete a question that you've deleted you must have saved the URL somewhere. Users with 10K reputation and up can also mark questions as a "favorite" and find them later from the Favorites tab on their profiles. Only moderators can search for deleted posts, nobody else. ("10k users" can search among their deleted posts.)

Deleted posts that are no more than 60 days old (since the creation date) are listed under "recent deleted questions" or "recent deleted answers".

What does deletion mean for a post?

Deleted posts are usually not physically deleted (that is, removed from the system); they're just hidden (AKA soft-deleted). This means they won't appear in search results or data dumps, and normal users following links to them will see a 404 (not found) page explaining the cause of deletion.

Moderators, and normal users with >=10k reputation, see all deleted posts that they have links to. Moderators are able to undelete any deleted post.

"10k users" may vote to undelete deleted questions: it usually takes three votes to undelete a question, but sometimes more.

"20k users" may also vote to undelete deleted answers: it takes three votes to undelete an answer.

What else should I know about deleted posts?

  • Reputation changes from bounties, votes (both up and down), and acceptances on deleted posts (including answers to a deleted question) are nullified. (Exception: Reputation earned for posts with a score of three or higher, and where the post has been visible on the site for at least 60 days, is retained).

  • Reputation lost as a penalty for having a post deleted by flagging is not returned.

  • The first time you delete your own post that has a score of three or higher, you will earn a Disciplined badge.

  • The first time you delete your own post that has a score of negative three or lower, you will earn a Peer Pressure badge.

  • Answers are automatically deleted when the question they're attached to is deleted. Such answers are automatically undeleted when the question is undeleted, except for answers that were deleted before the question was deleted.

How do votes to delete work?

What are the criteria for deletion?

For questions, a post that no longer adds anything to the site should be deleted. Basically, this includes most closed questions that cannot be improved and reopened. However, it may be beneficial to keep duplicates to aid future users in finding the canonical question.

For answers, any post that is not an answer (should be a comment, doesn't answer the question, etc.) should be deleted. Answers that are wrong or that dispense poor advice should be downvoted, not deleted.

If I flag my question with a request to delete it, what will happen?

The standard policy for moderators is to decline such flags. The reasoning is as follows:

  • if you can delete your question (because it has no answers, or the only answer has no upvotes), then you should do it. It does not require moderator intervention.
  • if you cannot delete your question, then there must be upvoted, or multiple answers. Deleting the question also deletes the answers. Deleting the answers undoes the hard work other people have put in to answer your question, and reverses the reputation they have earned too. This is not fair to the answerers of your question.

If you posted a question that you regret posting because:

  • it is a school assignment and you have now violated your school's "code of conduct"
  • it is embarrassing because it is a silly question

then deleting the question is not a solution because users with 10K (2K on beta sites) reputation can see it still anyway. It is also clear in the terms of service (section 3) that:

You agree that all Subscriber Content that You contribute to the Network is perpetually and irrevocably licensed to Stack Exchange under the Creative Commons Attribution Share Alike license. You grant Stack Exchange the perpetual and irrevocable right and license to use, copy, cache, publish, display, distribute, modify, create derivative works and store such Subscriber Content ...

Moderators will not delete your question for the above reasons.

What if I posted my employer's copyrighted code, or there is a copyright violation in my question, and for legal reasons it has to be removed?

Stack Exchange implements a take-down process in accordance with the DMCA. If you are a copyright holder, and someone (an employee?) has posted content which contravenes your copyright, then you can file a copyright take-down and the content will be removed. The process for this is described in section 15 of the terms of service.

Flagging your question for moderator attention is not the right process to follow.

Are there exceptions?

Occasionally some exceptions are made. Often, these exceptions come in to play when:

  • all answers are more than 60 days old, and have low or no score (answerers do not lose rep for quality answers since 60-day old reputation is not removed when the post is deleted as long as the post scores 3 or more)
  • there is something suspicious about the question and answers that is not covered in this answer.
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protected by Robert Harvey Sep 26 '12 at 23:05

Thank you for your interest in this question. Because it has attracted low-quality or spam answers that had to be removed, posting an answer now requires 10 reputation on this site (the association bonus does not count).

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