Bringing the conversation spawned by Coldstream's sad story in the loathe thread here as I know there's more to be said and this seems a more appropriate place.
Some possible issues to start us off;
How should these services be regulated, if at all?
My opinion - at least as much as the rest of medicine.
How much responsibility does the patient have?
My opinion - In the serious cases these people are already victims and their minds may well be primed by their situation for this sort of thing to take over. Consider as well that many people, even educated, never really learn how to properly sift through this stuff. I would be a bit hesitant to blame the victim, if ignorance is the problem then education is the solution. If denial is the problem..then I'm not sure where to fit victim responsibility into it if at all.