On: USPS now offers official ZIP Code boundary polygons

Your comment works great in a vacuum with no other inputs, but it doesn't hold up.

The unintended consequence of this is all the junk mail that makes regular mail a horrible experience to interact with.

Raise the prices , remove the spam.

I'm not describing a theory. I'm describing the world in which I live every day. It's much better for me, right now, in the real world, for the service to be cheap. Even though I've mailed nothing for at least the last year.