the worst part of modern times is that some guy may just send you a link of his bookshelf in goodreads as proof that he reads a lot, but it may just be as fake as his public profile. He may also download tons of books via torrent to impress you the next time you peek at his e-reader.
at least the old days you knew the guy at least spent a few bucks to have those shelves filled...
but of course that's all beyond the real point: books are not the main source of entertainment and culture anymore, as others observed. Can't you date the guy based on his choices of movies, TV shows or games?