What we need is to move to IPv6, not more IPv4 hacks.
Imagine how quickly websites would add IPv6 support if google started prioritizing websites with IPv6 in their search results. We probably need to pass a law that will force ISPs to enable IPv6 support for all of their customers though.
Amazon is going to (if they haven’t already) start charging a lot for IPv4 leases. Given how much of AWS the world uses, I imagine this will start the transition to IPv6.