What should be done when a (for example, brand-new) user has a question which ends with,
I ask because in the "edit suggestions" review queue today there was an edit which removed such an ending to a post. This was rejected by myself and another user, but then a high-enough rep user forced it through (they performed the edit themselves - although I suspect that this was not a forcing through of the rejected edit, but rather they added some Latex-ing so the high-rep editor probably knew nothing of the other two reviews). The question is here, the review history is here.
I disagree with editing a question to remove such a comment. It is not a typo, nor is it any other kind or error. No $\LaTeX$ needs fixing. Rather, it something which was put there deliberately by the OP in order to be polite, and the community believes that it should be removed (see my note, below).
I believe the correct response is to leave a comment explaining your reason for wanting the "thank you" to be removed, and asking the OP to remove it. (Such an explanation is especially useful for a new user.)
I was wondering if there is a general consensus to what should be done in this situation? A silent edit, or a polite comment? (Or neither? Or a compromise between to two?!)
Note: Personally, I have no problem with people ending their posts like this, although I wouldn't do it myself. However, I understand that the community (for some value of "the community") isn't overly fond of this and so it is discouraged. Which is why in this post I am presuming that the community believes the "thank you" should be removed.