Same with any media. Pretty much anyone can publish a book about something they appear to be knowledgeable on. There was that guy who faked his whole life story and pissed off Oprah. Anyone can get an account here and start spewing information with logical but false foundations and become very influential. People are still afraid of balls ingesting substrate, yet no one seems to have ever actually had a problem with it. TV, news, and documentaries are wrong a lot. College professors, doctors, all kinds of "professionals." You have to take anything you didn't learn or prove yourself with a big grain of salt.
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