The point is valid, but I have to say that Psychology Today is a bit of a rag, and I wouldn't trust them for good science. When I think "mentally ill", I tend to think of someone benign who has a hard time coping with the bullshit around them (of which there is a bewildering amount, and it stuns me sometimes to think about how most people deal with it). And fwiw, I'd have to say that some mentally ill people are just on some irretrievably bad paths, (by which I mean I can't imagine anyone being able to get them to be self-aware of their own badness), which is the only way I can "get" the category "bad people". I mean, to take something at hand, what do you do with the Tori Stafford story? Somebody'd have to be pretty fucked up to do something like that.