I've seen many people state that they were at their limit for fanning, and that Listia would not let them fan anyone back, YET...so there is some sort of a limit..I don't know just what it is, but like I said, I've seen several people say that. :)
Lilypill01 this is copied right out of the Listia Support Site: Fans are a fun way for you to follow other users on Listia! When you become a fan of another user you will be able to see their newly listed auctions in "My Listia". There is a limit on the number of users you can become a fan of. You are allowed to become a fan of 1000 users, but after that the ratio of your fans to users you fan has to be greater than 90%. If you do not meet this requirement you will not be able to fan any more users until you increase your ratio. This is what has happened to me. You might want to get your facts straight before you post that someone is "False".