Someone writes a book about how anonymous people on the internet tried to ruin her career by spreading fake stories. People don't like that, so they post fake reviews in an attempt to ruin the book's sales.

...making the author's point for her.

Interestingly, the 1 star reviewers are claiming the book was leaked and that they did in fact read it.

It does seem like they still didn't read it though despite having access to it. They're universally a sentence long and are either vague or GG talking points that don't really have to do with the book.