Should answers contain neopronouns where the generic or plural form would be more appropriate?
I am talking about a slightly older answer, as I wanted to let the issue cool down a bit first. In this answer, the poster used the uncommon pronoun "sie", not for themself but a not further specified person:
A now wishes to paint the pile red, but cannot because of B's bricks, so sie asks C to make some red bricks with which to replace them.
The comments seem to be deleted by now, but the question was about rather using "him" or "they" because "sie" is too uncommon. Instead of allowing more common pronouns, the poster linked the pronoun to its Wiktionary page, making the word one of the two links in the (otherwise not bad) answer and thus drawing more attention to the pronoun that it should have. Then they announced that they would revert any edit that removes the neopronoun and replaces it with a form that the reader would not have to look up first.
I don't want to start an edit war there, but I think while someone may prefer their own pronouns, the pronoun for some not further specified person should be neutral or plural to avoid confusion and drawing attention from the actual answer to the question why an uncommon pronoun was used.
I don't care too much about this specific answer. Still, I wonder if there should be guidelines, especially when someone announced that they would revert any edit that improves readability because they insist on having this specific wording in the answer.