I am wondering about if it is generally good practice to encourage someone posting about verifying their own proof to instead format their post as a question where they also post an answer? I specifically thought of this after looking at this question On open sets and closed sets where the asker definitely has their proof correct and I can't imagine anyone coming up with a better answer then "yeah you are right" which could be left as a comment so the question may end up being "unanswered".
When I was looking around here on the meta site to see if there was a good post already answering this question I saw this post Is it inappropriate to turn a proof verification question into a self-answered question? and specifically the line in the answer "This improves the readability of the question for those who come across it later: users expect to find an answer is the answer box, not in the question." I think that this is generally true that proof verification questions would be more readable if the question and proof were separated out from each other. What do other people think?
Specifically I was thinking of leaving a comment encouraging whoever is asking about a proof verification to answer their own question or something to that effect.