The problem is 20 years ago the people who were reviewing products were the buyers for distributors selling to brick and mortar stores.

Amazon business model was being a parasite, benefiting from the system of high quality products and trust built into the system. Without having to pay distributors, buyers, and store rents. And lest we forget sales tax.

But that old system is now dead and gone. So there are no trustworthy good faith reviewers.