Amazon keeps encouraging shady businesses more and more every day in the name of profit over value for customers. They've proven long ago that they don't care about customers and - even though I'm not a fan of saying this - the Feds really need to look into pulling them apart.
So...
here's a tool (browser extension or phone app) I've been using for a while when shopping on Amazon. Because Amazon allows fake (bot) reviews of products,
this tool (called RealMeta) service sifts through and analyzes all of the reviews of a product in a couple of seconds, and lets you know how trustworthy the reviews are - which relates to how trustworthy the product is. Take a look at the video to see how it works. It has helped me many times when a products just seemed to have way too many positive reviews for the crap it was.