You have completely and comprehensively missed the point. These girls aren't trying to be interesting (or at least, not all of them). They are developing a real

You have completely and comprehensively missed the point. These girls aren't trying to be interesting (or at least, not all of them). They are developing a real sympathetic response to the videos they are watching. Their symptoms may be (or, certainly are) entirely psychological but that doesn't make them not real.