Top reviewers on Amazon get tons of free stuff

NPR:

As of Tuesday, Michael Erb was the No. 1 customer reviewer on Amazon. He has reviewed everything from doorbells to travel mugs to toothbrushes.

As Erb has risen up the ranks among Amazon reviewers, the stream of free stuff has grown because manufacturers have started sending stuff directly to him to review.

This feels really shady particularly because Amazon doesn’t identify “paid” reviewers.