Both sides are on Quora.
The ones desperate for reviews, and the ones trying to entice people into paying for reviews.
There's also the new crazy, which is people asking about Goodnovel, which is essentially a rights grab writ as large as it can go, including all rights to everything for 70 years after your dead, including prequels, sequels, and anything using the characters or settings ever again, across everything. Mercedes Lackey is currently on a crusade on these questions.
Likewise on the 'should I go with this publisher' questions, where it's obviously vanity.
They just never stop. Both the authors asking, and also the trap merchants either answering the questions, or asking questions so they can answer them.