Part of the problem for Amazon introducing it is that it could be seen as vouching for reviews that were not detected as fake, even though they may still be fak

Part of the problem for Amazon introducing it is that it could be seen as vouching for reviews that were not detected as fake, even though they may still be fake. Unless the false negative rate is sufficiently low, it may give false confidence in products. > but the seller doesn't accept returns! That should be a con, not a pro. US? In the UK, the seller has to accept returns, so that removes one variable (and if the product is bad, you can just send it back).