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A question came up on SO, which was answered by several people. It was later discovered that the question was a dupe, and Votes to Close started coming in.

One of the people who posted an answer then commented to the effect that:

"I agree that's a dupe, and I voted to close, but I'm not going to delete my answer because there's no harm."

Should the poster delete their answer?

share|improve this question
That guy's comment is pretty weak. His argument should be "I posted a helpful answer," not "there is no harm in leaving it." – Robert Harvey Jun 21 '12 at 19:05
Note also that in case of a dupe, a useful answer might be merged into the existing question. – Ziv Jun 21 '12 at 21:38
up vote 9 down vote accepted

No. Unless the answer is a direct copy-pasta, chances are there is a little bit of difference between the two, and while they may come to the same conclusion, more information is always better.

Even if the question gets closed, the answer cannot harm anything, in the worst case, someone saw something they already knew, and in other cases, someone learned something.

share|improve this answer
Copy-pasta? You haven't had lunch yet, have you? – John Dibling Jun 21 '12 at 19:07
@JohnDibling mmmm... pasta.... – Richard J. Ross III Jun 21 '12 at 19:07
+1 - The only people really concerned about people not deleting those answers are people worried about rep. When you ignore rep -- barring any normal issues that may affect answer quality -- it's clear the information is helpful. – jmort253 Jun 21 '12 at 19:37
+1 for copy-pasta – Chris Mueller May 7 '15 at 13:43

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