This distrust of experts dates back at least to Eliezer Yudkowsky and LessWrong. Eliezer pointed out, rather convincingly, that mainstream philosophy is a total mess, and that taking a philosophy course is not a great way to improve your thinking. Most likely you’ll waste your time learning about Pythagoras or something.
Part 6 quotes a Motte’r as saying,
The thudding lack of intellectual curiosity is giving me a headache. Why study Pythagoras? Hmm, how about learning how to talk about a semi-legendary person of whom we have no direct written evidence, only stories written centuries after the fact?