The issue is that reviews for the same SKU are shared across all sellers. That doesn't even address the fact that some products have quality issues per color. T

The issue is that reviews for the same SKU are shared across all sellers. That doesn't even address the fact that some products have quality issues per color. They also mix the inventory together for efficiency in logistics. Once you do that, you admit that you don't care because you can't get the pee out of the pool. It seems like it should be easy to track the content coming in with an additional barcode sticker. You scan that barcode when the order is fulfilled and based on the user review/return/etc. ban that seller for counterfeit goods. It just seems like Amazon isn't interested in solving this because it becomes fairly trivial. I think the long term goal is to erode confidence in now Amazon branded products as they have different SKUs. Additionally, most people are lazy and won't bother returning something < $25 and will just pitch it but Amazon still collects their fees.