[rcxdude]

If you don't want that, then complain about a lacking a configuration as such and configure your firewall so that that they can't. But don't cheer on something that's breaking functionality that others might want (especially if it doesn't actually achieve your own goals reliably).

[dent9876543]

Oh, I do that too.

But to your point about not cheering on NAT, well I will because I see NAT as useful tool.

It is not an opinion well aligned with the preferences of the IETF. But the purist model of transparent end-to-end networking has never sat well with me. It’s just not a thing we want.

[lxgr]

So because you don't want it means that nobody can get it?

Because that's what happens if you advocate for NAT by default. Conversely, with "IPv6 + inbound-blocking-firewall on CPEs by default", everybody gets the same behavior by default, and people that want something else can get that instead.