Carrier grade NAT is a disaster for end users, unless you want to do little more than browse the web unreliably. Multiplayer gaming, peer-to-peer anything real

Carrier grade NAT is a disaster for end users, unless you want to do little more than browse the web unreliably. Multiplayer gaming, peer-to-peer anything really, is an unmitigated shitshow under heavy NAT. You definitely do not want carrier grade NAT to become entrenched in North America, like it already is in Asia. And at some point, even if we did want it, we'd run out of numbers for people who want to serve content, and at that point NAT isn't going to do anything for you, and the barrier for entry for new web businesses becomes sky high.