Both chat & forum have their uses: you help specific person (interactive ephemeral back-n-forth in the moment) in chat. While a forum (/stackoverflow) is orient

Both chat & forum have their uses: you help specific person (interactive ephemeral back-n-forth in the moment) in chat. While a forum (/stackoverflow) is oriented more to future readers from google (asynchronous updatable reusable info). Mixing both produces conflicting goals and disappointment due to wrong expectations (e.g., it happens with StackOverflow when some expect it to be the former rather than the latter).