I actually did not see OP as a great idea, especially in the global forum. If it was to be in the local board, we could say dudes will use it as a hang out discussion place.
NO, THANK YOU!
In all seriousness, I think this will just take away from the actual discussion on the forum, and probably actually result in hindering it.
This could actually be guarded against by limiting the number of words per chat (conversation) 50 words max will not encourage discussion on the chat.
But in general, I do not welcome the idea.