I started making this list as a response to another list on this site titled "Popular Books with No Literary Value," and as I was putting it together over the course of a few days, the person who made it made a second one.
While I don't think all of these books are the best ever written, I don't think we should shame people for reading them. These books have valuable themes and characters, and slamming them all as having "no literary value" seems both elitist and contrarian, and does no good for anyone. If you can't see literary value in Harry Potter, Gone Girl, American Gods, or The Stand, among others on this list, that sounds like your own problem.
To anyone who enjoys these books, I just want to say that there is absolutely nothing wrong with that.