The practice of shipping empty boxes to shill reviewers is fairly widespread https://www.geekwire.com/2015/amazon-files-first-ever-suit-over-fake-reviews-alleg

The practice of shipping empty boxes to shill reviewers is fairly widespread https://www.geekwire.com/2015/amazon-files-first-ever-suit-over-fake-reviews-alleging-calif-man-sold-fraudulent-praise-for-products/ https://www.geekwire.com/2015/amazon-files-first-ever-suit-o... "According to the suit, the site operated by Gentile offers to provide fake “verified reviews” for a premium, telling the sellers that they can ship empty boxes to reviewers involved in the scheme, to trick Amazon into thinking that the product had actually been purchased."