Using unallocated address space

This isn't very effective because a longer, more specific prefix wins. It
would immediately inflate the route table to its maximum size if the registries
announced every possible delegation. It is similar to the problem with people
hijacking addresses. Unless you tie it to filters which ignore prefix
announcements longer than the "authorized" allocation size. Which brings us
back to the start of this thread.

If AS1239 and others contributed and used something like the IRR to filter
announcements, the problem is simplier.

Here I go being silly again, but how about people take responsability for
their own networks and filter properly at their borders? All this talk of
how to enforce things is pretty meaningless when you have countless members
of NANOG itself half-assing their own networks and complaining about other