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Spotted a minor flaw in the new /review system -- If multiple (non-moderator) users select the same automatic comment for a question it gets posted multiple times.

This can give the appearance that we're beating up on the user as they accumulate a stream of auto-comments telling them exactly the same thing

One example from SF: enter image description here
Original question here.

There are two copies of the While this link may answer . . . link-only auto comment.

Possible fix: When using an auto-comment, scan comments for exact matches before posting
(could be a fast checksum).

share|improve this question
I'm almost positive it already does this, maybe it fails if there are other comments between? Or something else unique about this post, I know I've picked from the list a comment that was already listed, and it simply give it an upvote rather than reposting it. – KDiTraglia Nov 21 '12 at 20:28
When the exact same comment already exists, it's supposed to just automatically upvote the existing comment, to indicate your agreement with the existing one. – animuson Nov 21 '12 at 20:33
@KDiTraglia It's possible the intermediate comments are messing it up - I vaguely recall the upvote behavior but wasn't sure if I was doing it or it was happening automatically... – voretaq7 Nov 21 '12 at 20:40
Perhaps the user went in and edited the auto-generated comment (and either didn't change anything, reverted a change he made, or changed something we can't see from the image), and because of that it choose to not upvote it but add a new comment? – Servy Nov 21 '12 at 20:45
I also have seen duplicate comments with or without other comments in between. – Toon Krijthe Nov 21 '12 at 20:46
@Servy the comments are character-for-character identical, but the first one has an upvote -- Perhaps that confused it... – voretaq7 Nov 21 '12 at 20:58
@voretaq7 The upvote shouldn't be a problem, based on my past experiences. As I said, it's possible the user edited the comment then edited it again to reverse the comment. It's unlikely, but possible. – Servy Nov 21 '12 at 21:01
I for one think it's a good way for the answer to keep track of how many people are recommending his question to be deleted and why – Sam I am Nov 21 '12 at 21:18
@Sam, then maybe the original comment should be updated with a counter instead of being duplicated. It would be easier on the eyes. – Frédéric Hamidi Nov 21 '12 at 21:31

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