I don't think its only a poor thing.
"Can you post in-game pictures"
"Could you fix that link?"
"Could you update what payments u accept?"

I don't think thats shitposting at all. Sure the "PUT A [MP] TAG" or something along those lines is not something people shoud do, but for a problem that the poster can fix himself and isn't a massive breach for rules, I see no reason why a regular user couldn't give them a heads up.