Comments:

Introducing a Do Not Email registry is a highly improbable task that will just generate layers and layers of legal wrangling over how to manage it's implementation. At the root of the problem is the fact that email is free and it's delivery is essentially costless to the generator. If email was a cost based product, like the US Postal system (bulk mail), UPS, FEDEX etc., we wouldn't even be having this discussion. It's time for the ISP's to step up to the plate & set up a system that would allow email in and out by paid subscription. This would end ALL pop-ups, junk email and other practices that ISPs use to subsidize their "free" services.