Parent commenter definitely has got an idea what he's talking about: He isn't affected by these things. And then it's hard to tell if someone's getting something out of it or just being scammed.
However, there's no denying an effect on people in these videos. I can't listen to Mrs. GentleWhispering more than a couple seconds before feeling sick. And I mean that! My best guess is that I feel the video being deliberately manipulative and generate a shut off.