I think this is a fascinating discussion, and I've learned a lot from it. Having dialogs even with people we strongly disagree with sometimes can move us all forward if we keep open minds and keep returning to the facts. What I really have trouble with are people that ignore the evidence, sometimes piles of it, because they are so attached to their world view and have more of an investment in vilifying a certain set of people than being an objective scientist. (a certain lady medical student blogger comes to mind). Trying to have a discussion with that type of person is a complete waste of time, as noted on other threads. But I don't think Alan is one of those people. I appreciate his clarification about mental illness being a real illness and having to fight for it. We're so used to insurance companies saying that if it's a mental illness, they won't cover it, as if one could just 'get over' it, therefore strengthening the stigma. That being said, the scientific establishment needs to give up the ghost about trying to pin CFS in that arena, as previously discussed.
I think what Alan was trying to say with the CFS causing XMRV statement (please correct me if I'm wrong, Alan) is that CFS, whatever its cause, could set the stage for XMRV or MLV's by being deficient in some way and not fighting it off, kind of like how AIDS patients get all kinds of opportunistic infections such as Kaposi's Sarcoma. I personally don't agree with this theory, but we're not at the end of the road yet. I recall Dr. Alter saying in yesterday's journalist teleconference that to prove causality they would have to show the actual virus embedded in the human DNA. I think he said that's one of the things he's going to work on next. If somebody knows more about this, please elaborate.
As far as the taking of anti-retrovirals before they are proven to be the right treatment, I don't think there is one blanket answer for this that you can use for everybody. The patients and their doctors need to weigh the possible benefits and risks against the possible harm of waiting a long time for better treatments. I know if I were as sick as some people I've heard about, I'd tell them to bring it on. As it is, I'm pretty miserable a lot of the time, but I prefer to wait and see what develops.