I've not backed your assertion. I've provided some data
on the relative stability of the in-addr space. You've provided
zero data on the efficacy of the forward delegations.
Can you, with a straight face, claim the servers for the
forward zones have a better reliability rate than the 92.55%
that I have seen in the inverse tree?
actually, no. I don't have hard data to back the assertion that the
reverse tree is less reliable than the forward tree... nor do I really
need to do that to make the point that DNS PTR lookup isn't reliable
enough to allow DNS to be used to lookup connection endpoint identifiers.
Keith