It’s kind of like a vote count. The more votes you get the higher the rank you are :) they don’t give you privileges or anything but like when you search a specific genre of stories for example I love Vampire Diaries well if you searched up TvD the one with the most votes is the first one to pop up :)
Hey! Thought I should let you know the some of the first book with Katherine, Dean, and Sam are up! Sorry I took them down. I just needed to do some rediting