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What are “Community Wiki” posts on Stack Overflow?

I saw the word 'community wiki' a lot, but I have no idea how to use it and don't even know where it is.

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marked as duplicate by waffles, Adam Davis, Greg Hewgill, Ether, Shog9 Dec 11 '09 at 3:52

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

    
up vote 2 down vote accepted

Community wiki is explained in great depth here.

In short, it does two things:

  • Allows anyone with 100 rep to edit your question and answers (normally editing requires 2,000 rep)
  • Upvotes, downvotes, etc do not affect your rep

To make your question or answer community wiki, check the checkbox just below and to the right of the editing box when editing the question or answer.

Once checked and saved you can't undo it.

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