I didn’t know this was “a thing” until it happened to me.
It seems Amazon removes reviews for whatever reason, without warning, and without a mechanism for redress.
I applaud their efforts to remove scam reviews, paid-for reviews, and troll reviews. However, I didn’t have any of those.
Indie authors rely on amazon reviews and personal recommendations. I would think that Amazon would treat us better.
Has this happened to you? What did you find out about it?