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An answer to Source and context of $\frac{22}{7} - \pi = \int_0^1 (x-x^2)^4 dx/(1+x^2)$? posted on 9 June 2011 gained 31 upvotes before being deleted by its author on 23 August 2012. Would those who can do so please vote to undelete this valuable answer?

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I've undeleted this answer. (And also edited the link in the comment.)

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I'm a little confused by what happened. It looks like perhaps that user simply deleted their account, and all their answers were deleted as a consequence. Perhaps somebody should just re-post that answer under their own name as a community-wiki answer?

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    $\begingroup$ This is fine as it goes, but I think undeleting the original answer is even better. $\endgroup$ – Andrés E. Caicedo Aug 26 '13 at 0:38
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    $\begingroup$ I think it is more appropriate to have someone re-post an essentially equivalent answer. Presumably the user wanted to delete their account for a reason, we might as well respect that. I think such actions can help build trust among those suspicious of how we might use their contributions. $\endgroup$ – Ryan Budney Aug 26 '13 at 1:07
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    $\begingroup$ An anonymous user, so no, I do not see that. $\endgroup$ – Andrés E. Caicedo Aug 26 '13 at 1:15
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    $\begingroup$ Anyway, once you post on the site, the content is licensed under a Creative Commons Attribute-ShareAlike license, so I am not quite in favor of one-sided deletion that actually decreases the usefulness of the site, or of tip-toeing about it and posting the content again as CW or somesuch. (But I may well be in the minority here, it is not something I plan to argue, in case quid shows up.) $\endgroup$ – Andrés E. Caicedo Aug 26 '13 at 1:20
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    $\begingroup$ There's a big gap between doing what is legally required of yourself and in being considerate, nice and/or doing the right thing. Anyhow I'm not trying to make a big point here either. $\endgroup$ – Ryan Budney Aug 26 '13 at 1:26
  • $\begingroup$ +1 and echoing @RyanBudney's last comment, word for word. $\endgroup$ – Yemon Choi Aug 26 '13 at 1:42
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    $\begingroup$ @Ryan: No, the user deleted their content before deleting their account. $\endgroup$ – François G. Dorais Aug 26 '13 at 3:37
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    $\begingroup$ We've been through this, very recently. At the time, I re-posted an exactly equivalent answer (I simply did a cut'n'paste), and was advised by a moderator that it was better to vote for undeletion if I had that privilege, otherwise start a thread here on meta. See meta.mathoverflow.net/questions/665/… $\endgroup$ – Gerry Myerson Aug 26 '13 at 4:30
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    $\begingroup$ To avoid a potential misconception, I will add that the post was deleted about a year before the account was deleted. Deletion of this post and of the account seem unrelated. $\endgroup$ – user9072 Aug 26 '13 at 7:50

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