@Noahpinion That wasn't the biggest problem with what Oz did, in fact it was arguably a social good in terms of education (many people really did learn from Oz). The bad thing, which you could easily avoid, was pushing supplements and other quackery.
@Noahpinion 这不是 Oz 所做的最大问题，事实上，它可以说是教育方面的社会福利（很多人确实向 Oz 学习）。您可以轻松避免的坏事是推销补充剂和其他庸医。