> You have absolutely no idea what their constraints are or what their IPv6 decision making process is.
Yes I do. I've talked to them about it in depth.
> But it's not "because the hardware doesn't support it";
I never said the hardware doesn't support it. I said the hardware needs upgrades to support it at their scale, which includes software updates to the hardware, as well as the operations around said hardware.
It's been a priority for them for years and customers have been asking for years. It's not done because it requires a lot of work and capital. Hopefully the revenue they bring in from charging for IPv4 will help offset the cost of upgrades.