Expect CG-NAT boxes are expensive, and introduce another point of failure into the network. Most mobile carriers are running IPv6 first networks these days anyway.
Like you said, CG-NAT does have the benefit of making v4 address reputation less reliable, which means it's not as big a deal for the transition to v6.
>CG-NAT does have the benefit of making v4 address reputation less reliable
heh, less reliable is doing a lot of heavy lifting there. You mean "complete and total trash". We need to get to the point where Cloudflare/AWS/some other big sites just block CG-NAT nodes for a day going this IP address is a risk.
Instead if you're a website, instead of doing an easy block by IP, you're left filtering out AI crawlers, spammers, and lots of other crap hiding behind a single IP with thousands of other users behind it, and ISPs that don't really give a shit about doing anything about it.
We need to push the value of IPv4 to nearly zero and finally move away from that crap.
Could you please stop posting unsubstantive comments and flamebait? You've unfortunately been doing it repeatedly. It's not what this site is for, and destroys what it is for.
Why? How is it "discrimination" if it actually corresponds to a single user, who has been doing bad things to your server (e.g. slamming it with requests)? Do you expect to be able to go and knock on people's doors all day and not have them tell you off?
Like you said, CG-NAT does have the benefit of making v4 address reputation less reliable, which means it's not as big a deal for the transition to v6.