Did anybody consider just handing out a /48 (or a bit smaller)
automagically with each DNS registration?
Routing Table Bloat. If you can figure out how to do this in a CIDR
aggregation context, or otherwise work around the table problem, the
IETF and NANOG will quite certainly jointly nominate you for
sainthood. ;)
...right after you get lynched for heresy.
Keith