There’s also the strangely still-not-even-admitted-as-problematic Amazon item page referent shuffle, where one item is for sale on a given page, and the item sold by that page points to one item by a given seller. The reviews of this item are spammed positively, and then the item being sold on that page is changed by the seller, yet the reviews follow the page, not the item sold at the time the review was placed.
This combined with Amazon’s commingling of inventory of Amazon corporate sourced items and third party seller items results in a status quo in which, when purchasing an item on a page operated by the first party manufacturer and/or first party supply chain, the Amazon item picking system may still fulfill that order via inventory sourced by third party Fulfilled by Amazon sellers who knowingly and unknowingly are selling counterfeit products. You never know what you’re going to get with Amazon, and neither does Amazon or the third party sellers. It’s insane.