There have been articles about it, I don’t remember the details, but it is an exploit stemming from wanting the review to be about the product instead of the ve

There have been articles about it, I don’t remember the details, but it is an exploit stemming from wanting the review to be about the product instead of the vendor, and the process of combining reviews from different listings of the same product. The fact that the reviews are not limited to a single vendor is a major part of the overall problem.