I realise this could have its problems with abusive mods (although Lemmy records when people edit posts), but to me, it has a lot of benefits. Some communities have rules around how posts should look for clarity and/or aesthetic purposes. Sometimes as a mod I see posts that I think are fine, but could just be slightly adjusted to look a bit different or match up with the standards of the community - and I don’t want to be anal and remove it over something small like that - but I would quietly edit it.
“Please edit your post title to [whatever it should be edited to to reflect community standards]” in the comments from a mod would also resolve the problems you have. In my opinion looking anal about rule enforcement > potential for abuse.
Although I do think if flairs are implemented, mods changing flair would probably be a good option—far less room to change what the original poster is saying to make them look bad.
I mean, and/or the use of bots to automatically instantly remove posts that don’t meet the posting format.