Last Month the Japanese try to retrive this mod a little bit more. They played in the at 2pm CET. At the moment the gametracker,com Server Monitorring is off. Hope soon they turn it on. The ranking seems to work.
Remember that the master servers are owned and run by EA, and so are seperate from your purchase of the client game.
I know the original reason for servers being de-listed was because of people running modified servers that unlocked the extra weapons.
I believe ABR works by modfying the python stats code, and thus its very possible that its being falsely flagged and de-listed for the wrong reason.
ABR is a great idea, and it would be more productive to contact EA by email or post on the official forums, and ask them to investigate the reason for being de-listed.