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When closing a question as duplicate the "Possible duplicate of" comment is automagically added to the question.

However when adding such a comment manually: "possible duplicate of random text" that comment is also removed. To me it doesn't make sense that questions which to not point to a SO / SE question or even comments without any links in it are also removed when the question is closed as a dupe.

I just found this out by close voting a question as a dupe of another question, but I also added a manual comment which linked to a user profile (because it contains lots of relevant information for OP and possible future reasons):

possible duplicate of this [user](http://stackoverflow.com/users/727208/teresko?tab=answers&sort=votes)'s list.

By the looks of it the script simply checks whether the comment starts with "possible duplicate of" and if it matches it will be removed.

The room 11 team also did a quick test with a very simple example which also got thrown away:

possible duplicate of testing........

I understand that this issue is minor and there might as well be a technical reason for this (i.e. not having to keep track of automatic vs manual comments), but this behavior is kinda odd to me.

I can think of two solutions for this:

  1. keep track of manually vs automagically added dupe comments (again you SO people might have a good reason to not want this).
  2. Improve the "dupe comment matcher ™" to at least check whether the comment is in the correct format for "auto dupe comments ™" with a proper link to a question page.
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    Tz, tz, that happens when you make jokes out of the pre-made tests for auto-comments :) – hakre Dec 25 '13 at 22:17
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    Duplicate as well! (so this comment will also be removed ;)) – Shadow The Princess Wizard Dec 25 '13 at 22:22
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    @ShadowWizard It's a similar feature request, but not a duplicate, I'd say. The one you link to has more specific boundaries on what the system chooses to delete. – jeremy Dec 25 '13 at 22:24
  • @random Any chance we could get some fix for this instead of closing this question and letting the discussion die again? Or perhaps some answer on the dupe? – PeeHaa Dec 25 '13 at 22:26
  • Also related: meta.stackexchange.com/a/47446/205842 – jeremy Dec 25 '13 at 22:29
  • @PeeHaa random can't fix this even if he want, he's not a dev. Anyway the issue of both is the same: auto deletion is too aggressive. Looks like it's case sensitive though, comment with "Duplicate" is not deleted. :) – Shadow The Princess Wizard Dec 25 '13 at 22:30
  • That it's been reported in various ways means either a fix is upcoming or a fix is not upcoming – random Dec 25 '13 at 22:33
  • I know random isn't a dev, but it just sucks having questions like those hanging around without any conclusion from SO. Hell even a [status-by-design] would do. – PeeHaa Dec 25 '13 at 22:33
  • @random exactly my point. So it would be very nice to at least know whether it is coming or not. – PeeHaa Dec 25 '13 at 22:34
  • How about this then meta.stackexchange.com/questions/46799/… where it may be bydesign if we're taking any stock of it – random Dec 25 '13 at 22:41
  • That's about something else. – PeeHaa Dec 25 '13 at 22:43
  • By "something else" it's a result of that. All duplicate closes will now wipe out all comments mentioning duplicates because acid. – random Dec 25 '13 at 22:45
  • Yes it's a result of that and my proposal and the dupe's proposal is about fixing that. – PeeHaa Dec 25 '13 at 22:46
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    If you retag it with winterbash-2013 they'll be looking at it in no time. No dev has left a comment on any of the others really. – random Dec 25 '13 at 22:49