Yeah, this is a problem for a long time on Amazon, especially with a lot of the cheap Chinese stuff posted on there. When some cheap looking product has a dozen reviews all like "very good super high quality!!!!!" you know it's just astroturfing.
It goes far deeper than that. The last time I trusted amazon, I ended up getting a counterfeit book and having to fight tooth and nail to get a refund. This set me down a path of trying to find out how the reviews lied to me and how widespread the issue is. I would see items that had been listed for years suddenly balloon to thousands of 5-star reviews, then disappear. I would see old reviews of a product that were reviewing a completely different product. There is no oversight. Amazon is the house in a a casino where the only rule is that the house always wins.
