LWG wrote:
This is, of course, correct. But that did not stop some Potomac TRACON
controllers from saying "Cleared into the ADIZ." This past Thursday, I was
told that my ADIZ entry was "approved."

This has been a continual training issue...the real disaster was that
they established all this ADIZ nonsense at the same time the various
approach controls were getting established in the new Potomac Tracon
facility so it was even inconsistant from sector to sector.
Mostly they say approved because pilots like to hear something, but
there's no operational or regulatory requirement for it.