Normally I don't complain about the Amazon reviews for my books (they are whatever they are). But I've noticed Amazon has started removing reviews, based on . . . apparently nothing.
The latest was from a blogger in India, who liked my book. Usually, if asked by an actual book blogger, I will send a book as requested. For bloggers in India, I'll usually buy the book (a paperback usually) through Amazon and have THEM ship it, since it's less expensive for me to snd a copy this way—shipping to India is pretty expensive, for individuals.
I neither ask for nor do I expect a review. If that blogger wants to review the book, then I am pleasantly surprised. I certainly NEVER request a specific kind of review. If the review is good then good, if bad then that's life.
Meanwhile, I have one review for one book that is bad, based on a bad download error—they couldn't read the book. I asked Amazon to resend it and (as far as I know)the issue was resolved, but the bad review (for the download experience) remains.
I've sent Amazon a message asking for why the recent review was removed. I don't actually expect a good outcome, but hope springs eternal.