I have this answer to this post that gets a steady stream of upvotes. Due to the fact that more and more users actually upvote the answer (and maybe like it), I continually monitor it, reading it again and again, and checking for correctness, grammar and answer structure.
It came to the point that I revised it so much (10 times, according to this meta answer) and became a Community Wiki. Ok, it's cool. Go community effort!
Curious, I read what a Community Wiki is. Cool, Stack Overflow - Wikipedia style. But I was curious more about the criteria that makes a post a community wiki. Generating a tremendous amounts of answers (mass contribution) or marking it manually as CW, I can understand.
But what makes 10 edits from the original user, or five edits from different users a basis for an answer to be converted to a Community Wiki?