(The comments on the post are rather interesting in themselves)
I say "good on you, John" for taking a stand. Now that I know of these prohibitory orders, I might try them out on Pennysaver so I stop getting their stupid catalogs.
A while ago our junk mail situation got completely out of hand, and at the time I found 41pounds.org, which for a very reasonable $41, did a very good job of stopping pretty much all of the addressed spam.
About the only thing we get now is a small wad of catalogs that USPS delivers to every resident, which isn't explicitly address to us by name, just the apartment number. That and these stupid "checks" from Washington Mutual that we can use against our credit card account with them. They give me the screaming heebie jeebies, and I shred them on sight, because I've seen how insecure cheques are.