All customer addresses are kept private. NHFAstore.net does not share e-mail or postal addresses to any third party. You can get your address removed from the database by simply requesting it.
The policy mentioned above does not apply to persons or labels who rip-off the label. Unpaid c.o.d.'s, theft of trade items by not sending theirs etc. The names are exposed to the handful of labels working in the same genre, to prevent further damage caused by the internet thieves (etc) seeking for new targets. There is no danger ending up on this black list unless you behave in damaging ways with intent to do so.