> Why do we bother having "public" nameservers answering for this space at all? > > Why don't we have "blackhole-[12].iana.org" have A records of "127.0.0.1"?
127.0.0.1 is a convention, not a standard. and to the extent that it is ever upgraded to a standard, i don't think putting A RR's pointing at other folks' hosts into the IANA.ORG domain would be a polite thing to do.