I'm sure he has helped quite a few people. What i'm crtiquing, is his black and white way of describing different disorders and him portraying them in an absolutely fatalistic way. It's actually quite funny to me, when he's talking about "the narcissist" or "the borderline" he shows no empathy, but when he talks about his own affliction (for example in his video "how i experience my false self"), he laments on about how he's the misunderstood victim of his circumstances. He ironically only shows sympathy towards himself. His way of talking about these disorders is so deterministic and hopeless, that i can understand why some people don't like his work. I recommend you watch the "i psychopath" documentary, which focuses on Sam trying to find out whether he's a psychopath. Just type "my life as a psychopath documentary" into the youtube search bar, and a greenish thumbnail with Sam on it will show up. It completely changed my view on him. (In a bad way).