Comment by simoncion
I think you're misunderstood what you quoted:
> It's a terrible it to start a new project in 2024 without IPv6 support though.
That does not preclude ALSO supporting IPv4.
Remember that for many technical folks out there, the default is "Only do IPv4 support" which is (IMO) just batshit stupid.
(Do also note that the sentence immediately prior to the one you quoted is "I didn't recommend dropping IPv4.".)
As you know, we have two options:
1. Support IPv4 and IPv6.
2. Support only IPv4.
#2 has essentially no downsides and is radically simpler.
That's my point. It's not terrible to start a new project without IPv6 support, because adding IPv6 support adds a ton of complexity for almost no benefit.
I never claimed or insinuated that you recommend dropping IPv4. If I thought your recommendation was to drop v4, my argument about the complexity of dual-stack would've made no sense.