Some months back I gave a so so review on AirBNB and had it removed. I asked why, I was sent a link and cut and pasted guidelines. Responding using Reason led to being completely ignored.
Then I discovered a reddit subgroup where hosts tell each other tips to easily get reviews removed.
The whole review system has become corrupted. The complaint is that only motivated people put positive or negative reviews, which is only partially true. It's actually gaslighting by marketing people.
Not surprised by Amazon. Fakespot helps somewhat it seems... as does not ordering from Amazon where possible. I just ordered a jacket with a 20 pct coupon from a sporting goods store that sells the same item on Amazon.. without the 20 pct discount.
The trick is to remove negative reviews that violate guidelines, but for positive reviews that violate common sense and ethics, nyet.