More generally, it's the attitude that once people start getting serious about something or it gets complex, then they're "wrong." As another commentator said, it's about seeming cool, at all costs.

That, in turn, is due to people caring more about rhetoric than reason. Regardless of whether something makes sense, if people can say it in a way that conveys the right image, they are "right."

And this is all because we spend way too much time passively consuming media, and are consequently taught to process things via image vs content.