I don't know anything about the ban being removed. However, only Neostrada ADSL users have been banned from main and league servers. Train server shouldn't have this ban because it's on a different machine. So if your provider isn't Neostrada ADSL, you can play just fine.
Anyway, even if Neostrada fucks all its good players to protect one asshole, I could hack together some GUID registration system so we could remove the IP ban. It'll take some time though...