Any and all mention of a chat forum or a chat room has been banned.
So I don't think what you're proposing is a good idea.-Chat Room suggestions is an automatic ban from the board. We have said over and over again that we will NOT make a chatroom.
I like to think of AO as one of those "more respectable" sites in which each and every post has a point to it. Posting about pointless stuff should be confined to GaiaOnline and that's about it.