Not arguing with what you said (not agreeing either) but i want to add a perspective.

Not all human discussion can happen in forum-like format. Quick disposable chats are also usefull for when you're in a state of "figuring things out" where quick and short feedback help you navigate a problem rather than reading long well-researched well-formatted replies.

There must be room for both modes: the "thinking about it now" is in chat and the "having thought about it" is in SO, forums, documentation etc etc.