"EITHER YOU TAKE CARE OF OUR NEEDS AND REQUIREMENTS WITH YOUR WALLET OR WE'LL RUIN YOUR AUTHOR CAREER. PAY US OR DISAPPEAR FROM GOODREADS FOR YOUR OWN GOOD."Failure to comply with these demands results in authors getting slammed with hundreds of one-star reviews on Goodreads. The company is typically slow in its corrective actions.
All indie authors know how difficult it is to get readers to check out their work. It means putting yourself out there on social media (the introvert's equivalent of smelling sweaty socks) to get the public's attention. Many authors choose to discuss topics of personal interest to them. And if there's anything we've learned over the last few years, doing so puts a target on your back. As their audience grows, the trolls take notice.
Amazon used to have a sock puppet problem, but then it found ways to restrict reviews to verified accounts by simply making use of data it already had (verified contact info, purchasing history, etc.). Since Amazon owns Goodreads and offers potential readers easy to access links to buy said book, you would think that they would make every effort to ensure that the number one social media site for books was free of crippling attacks on their revenue stream.
Thanks to Monica for bringing this to my attention.