I bought her Star Trek novelizations when I was a teenager. At the time, I had no idea that (a) she was an original Trekkie (b) had studied genetics and (c) had won both the Nebula and the Hugo Award (the Nebula multiple times).
She also made it a point to prove that women could write science fiction just as well as men, in a completely male-dominated science fiction landscape.
She managed to finish her final novel less than two weeks before she died.
(Read here if you don’t have access to or don’t care for the NYTimes: https://www.geekwire.com/2019/vonda-n-mcintyre-1948-2019-seattle-science-fiction-star-dies-cancer/)
The combinations of formats and editions make it impossible for readers to pick between multiple versions of the same products, and allow those selling badly put together editions to piggyback on good reviews.
At this point, Amazon should just admit that its review policies are a complete shambolic mess. If they refuse to allow fellow indie authors from reviewing each other and even prevents their own friends and relatives from reviewing their work, how can Amazon justify trying to sell dreck this way?