The one down below only has limited permanence and visibility. It can be used, but it is necessary to create a room and then invite people to join you. You can sit there, but no one can see you are in chat to join you on their own. So if someone wanted to, and could sit online on this page, they could open a room and post a thread announcing and inviting others to your "hosted" chat session. Still it would require manually sending invitations to those interested in being a part of your chat session. But soliciting replies to the invite thread could be used to alert you to anyone interested in joining.
I do hope something more available to drop in on and hang out is worked out though.
I do hope something more available to drop in on and hang out is worked out though.