I think most people use Reddit to just browse the subreddits. GoodReads is about searching for books an adding then to your shelves, many of those might be book

I think most people use Reddit to just browse the subreddits. GoodReads is about searching for books an adding then to your shelves, many of those might be books that someone just mentioned to you in passing, or you don't remember the full/correct name. Different usage than reddit