Interesting point - some languages have a highly prescribed syntax/grammar that is Deemed Correct and should be used.
Even then… maybe this is my english showing through but it probably depends on the context? I imagine a forum for Roblox players would be a lot more tolerant than a professional setting.
English… well first of all, which English?
My approach to this has generally been to give back the same amount of energy that went into it. If someone excretes a low-effort confusing question or topic onto a forum I participate in, I’ll probably give it no attention.
For post writers, I’d probably recommend an overall approach matching the advice I give my kids: make it easy for people to help you when you’re seeking help; or easy for people to interpret what you’re talking about. Part of that is tailoring language to the expected reader, part of that is composing your words sensibly.