X Top 500 Fans
Ranks your top 500 X fans each month by who liked your posts most and saves them to a private X list.
Problem
It's hard to see who your most loyal followers are and who's new or has drifted away.
Solution
Each month it ranks your top 500 fans by likes on your posts, flags who's new and who dropped off, and puts them on a private X list named for that month.