I think is asking for a forum just for people who are currently in MD/PHD's at med schools. I personally think that is a bad idea because it will suck off 1 of the 5 people who post in the allopathic forum.
Nothing is preventing you from posting in whatever forum you want.
I think a forum for current MD/PhD students makes sense, although I'd imagine that the post totals might be rather dismal. On the other hand, it could provide a location for good information for current students.