>> And past that, Amazon does something really crazy. They allow anyone to leave reviews on any product, whether they purchased the product or not. ... And so,

>> And past that, Amazon does something really crazy. They allow anyone to leave reviews on any product, whether they purchased the product or not. ... And so, what happens is that there are scammers using fake bad reviews as weapons of war to knock good sellers down in ranking and capture what would have been their sales. How does leaving a bad review for a product have any effect at all on the ranking of a seller? Reviews for a product are wholly unrelated to seller reviews. You are allowed to leave feedback (including a star ranking) for sellers, but that option is only available from the summary page of your actual order, i.e., it is not possible to rank/review a seller without having purchased from them.