Why on earth GA and the taxpayer or ratepayer should be subsidising RAAus so they get free use of infrastructure that everyone else has to pay for is pretty unfair.
Saying it is about "privacy" sounds like a way of wriggling out of paying their share.
A while ago when trying to trace the owner of a RAAUs aircraft who had caused havok I was told that the database was kept secret so that ex-wives couldn't get their hands on the aircraft asset in any kind of settlement. I found that pretty sickening.