- Lists suck. For example, it never anticipates even something as simple as abandoning a book (though you can create that).
- There's like a whole industry of faking ratings and nobody cares about it enough to do anything about it.
- It's owned by Amazon, but Amazon basically didn't touch it since the acquisition almost a decade ago.
Well, they did so recently to kill the API access, which was its #1 selling point to me. I liked using it by not visiting their ugly design ever, but that's not a possibility anymore.
Like reddit or any huge site its usefulness isn't in the presented top layer (recommendations/front page/popular list of x) it's the depth of millions of users.
If you read a relatively obscure book and look it up on goodreads then you read through the reviews to find users who gave a high quality write up and then look at that user's profile. This will lead you to other users and books that are actual quality.
You could create a smaller website with a higher quality surface level but it's going to be infected with the bias of a small "elite" userbase making it a basically useless echo chamber.
It's on par with complaining about facebook and creating your own better version of facebook while completely ignoring the reason why everyone is on facebook to begin with.