I tried to leave a positive review for a product I liked, and Amazon blocked it as fraudulent seemingly at random. Then when I ordered a second one, the box cam

I tried to leave a positive review for a product I liked, and Amazon blocked it as fraudulent seemingly at random. Then when I ordered a second one, the box came with one of these cards inside. I guess Amazon is making a token effort to fight these, but it's clearly not working in the slightest. Many other scams are also alive and well there. The shipping and return policy are what keep me there; the store is crap. I wonder if there's an opportunity to make an alternative storefront for Amazon with its own reviews and decent search. Probably would violate the ToS or some other lame thing.