Goodreads is the worst. At this point, Amazon should just shut it down.
Amazon reviews are unironically better, because you can see if somebody actually bought the book or not, and Amazon has very sophisticated anti-Astroturfing measures. (Good luck getting your friends and family to leave good reviews of your book -- they'll catch it and delete them.)
Goodreads is infested with marketing and publishing cliques and a lot of their reviews are fake or paid for. It has never been more over.
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