I heard about stories from friends and colleagues buying stuff from Amazon and getting fakes. Sometimes it's in the description and the brand name. The "fix" was to buy from the official brand store at Amazon. Happened to me once (as far as I know) and put it as an exception. Should have ordered from the official shop instead. Right?

Well, turns out that this would not have helped as Amazon co-mingles all "same" products together, whether they come from seller A or seller B. If seller B sells fakes with the same UPC, you might items from A or get a product from B.

Obviously mixing "same" items is cheaper for Amazon. But I guess they figured out that this was a bad decision, so they stop it by end of March (see https://sellercentral.amazon.com/seller-forums/discussions/t/106d0747-e5c6-44d8-86f3-7669f11238fe)

Does not mean you don't get fakes starting in April as what is co-mingled, cannot be un-mingled easily.

The question I have: what else does Amazon do which benefits their bottom line at the expense of the customer? Somehow I am sure this is not the only one.