The focus of the article is on charlatans selling courses, but I think Amazon deserves more scrutiny. They enable this entire ecosystem of fake books and fake products. I have to imagine that with the amount of data Amazon collects, they could do a lot more to counter the epidemic of fakes.
they are not incentivized to do so, since they profit from the fakes; only if/when this results in customers disengaging from Amazon altogether and total sales decreasing, will it be seen as a problem