The title is correct - 600 Chinese brands were banned, and the reason for the ban was that the manufacturers were including incentives for leaving positive reviews within the product packaging.
The issue isn't product quality in this particular instance, or buying something for $2 and selling it for $20, it's that these brands were including incentives to write fake Amazon reviews inside the packaging of the goods they manufacture.
The issue isn't product quality in this particular instance, or buying something for $2 and selling it for $20, it's that these brands were including incentives to write fake Amazon reviews inside the packaging of the goods they manufacture.