Personal experience... I ordered a car roof rack, but received a pile of random plastic chunks. I returned it for a refund. My fear is Amazon just put those plastic chunks back in the mix for some other unsuspecting buyer. So, I left a review to the effect of "one of the sellers is inserting garbage into the stream, caveat emptor". Amazon rejected the review. As a buyer, I would have found that useful, as it would allow me to go elsewhere. Obviously bad for Amazon, but so is shipping be a pile of garbage - I won't be buying roof racks from them any time soon.
Because it probably wasn't a seller, but a fake return.
Something that Amazon is at fault for and can happen to any item, so while it is an issue, it's not really on any particular seller or item
Fwiw I've never had a negative review removed after hundreds of reviews. But I'm very strict about framing issues in terms of them item.
For example, I recently got a shattered ceramic cup.Amazon had padded the contents of the outer box, but the inner box the actual cup came in had no padding whatsoever... paper thin with no clearances.
There was never a hope that thing would ever have reached me in one piece, regardless of what Amazon did to package it and so I framed the negative review like that.
It's something that a prototypical instance of the item would share as a shortcoming. Amazon can't fix it, only the manufacturer boxing it can
