Timothy’s favourite author Declan Finn has had a large number of his reviews (i..e.ones written by him) deleted from Amazon: http://www.declanfinn.com/2018/03/amazon-war-on-users.html He also notes that others in the “Conservative Libertarian Fiction Alliance” has suffered from a similar issue. Perhaps not without reason for once, he suspects political interference.
However, the answer seems to be simpler than that. This post from 2016 explains some of the housekeeping Amazon does with reviews: https://tracycooperposey.com/amazon-reviews-being-deleted/
“Since then, Amazon have gone through phases where they ramp up their culling of “inappropriate” reviews. Their review policy states that reviews written by anyone with a personal relationship to the author are inappropriate. So reviews by my mother or my sister-in-law should be rightfully deleted.
But lately, Amazon have applied that “relationship” ruling to anyone who appears to know the author in any familiar way at all, including being friends with them on social networks like Facebook.”
It’s easy to see how the ecosystem of authors around Superversive and the CLFA may fall afoul of Amazon as a consequence. The mutual support aspect of these groups of writers includes promoting each other’s books. Putting their politics aside and the question of gaming awards aside, this seems unfair on balance – they like each other’s books because they are writing the kinds of books they like.
However, they are all stuck within Amazon and have little choice but to live with Amazon’s arbitrary enforcement policies. In this case, Amazon doesn’t want reviews to be a form of cheerleading or mutual encouragement but rather a piece of advice to prospective buyers.