Is there a way to change the name of a tag? Or is this something only moderators can do?

(Re 0. @YemonChoi And rightly so.)

Oh, this would be great.

In the form you have stated it, the question is not appropriate.

Asaf, if it is indeed the user referred to by quid, look at the end of this thread, and then here.

One common approach is to post a CW answer collecting the relevant comments.

One reasonable situation may be: "How do you prove $X$? I have a proof (sketch follows) but suspect a more elementary approach may be possible, and would appreciate such a proof or appropriate references". And obvious variants: "Would Euler have been able to prove $X$? Note my sketch uses $Y$, which was not available in Euler's time, etc."

(I agree with Steven.)

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