I noticed that the "Community" user had suggested an edit to an existing, accepted, correct answer, that resulted in the answer no longer being completely correct.
Further investigation shows that the suggestion had come from an anonymous user, and that it had been approved by a moderator.
I ended up downvoting the answer since it was no longer completely correct, but this feels wrong because it was not edited by the original answerer, or even a registered user.
Should we accept edits from anonymous users? What incentive do they have for providing factual information?