I've wondered this many times.
You know, that gives me a bright idea...well maybe it isn't so bright, because I just woke up, haven't had enough coffee, and haven't really thought about it.
But seems to me I could provide a simple forum where JUs could sign up that included a PM system. Most forums have that these days, anyways.
I should probably solicit ideas on my own thread, terp, but if you'd indulge, I'll just mark this post to watch and ask your readers and others to come weigh in on whether or not they'd like me to do such a thing.
And just so discussions wouldn't inadvertantly move to there, there would only be one forum, and no posts would be allowed. It would be simply for me to announce any downtimes or maintenace updates. Users would register citing their JU name, and would be requested to use their JU name as their "handle" Then people could pop over there and PM each other til their hearts content.
If Brad wished, when it was done, I'd give him the whole thing if he wanted it. PMs here would be an awesome addition. Great idea, and thanks for bringing it up in a post, Terp.