I'm not familiar with the backend of Goodreads but perhaps one tiny step forward would be for the book page to not open for ratings/comments prior to review copy distribution. And because review copy users already have to on-board (in some way) to get those copies, Goodreads could provide an integration point for authors to plug that reader list in and only let those folks respond initially, with restrictions lifting at launch.
Anyway, I wish them best of luck. This problem is widespread, see: Amazon, Metacritic, Rotten Tomatoes, et al.
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