Fuck quality! Say when you got something to say, and that'll be enough.
No! No one should "fuck quality," even as saying what you have to say is a valid point. You might not need that most polished grammar or tone, but still, if you poorly construct what you wanted to say, don't you think the value could depreciate or be lost altogether? Goodly written post will surely be more engaging, while badly written one could sway the reader away.
In simple terms, we need to make emphasis that posters should just ensure what they are writing is clear and easy to understand. Many writers think that quality post means big grammars and an overly formatted post. Yea, just say what you have to say and leave all the unnecessary edits just to make the post look quality. A reasonable post that has value won't be difficult to understand. Just make it simple.