Why is HN IPv4-only? And why should they bother to spend any effort fixing it? Given that, e.g., techcrunch.com and github.com and everything else linked from HN is IPv4-only, you can't usefully use Hacker News from an IPv6-only connection, so why should HN care?
You're expecting altruism or geekiness on the part of every single website ever -- it's fair to expect that from Google, but not from everyone. The transition may or may not be happen_ing_, but it will never finish.
No I'm not, I'm expecting anti-altruism from low-cost ISPs. (Name one consumer ISP that you think is altruistic.) Then, to capture that market, servers will start deploying IPv6.
Today, IPv6 is billed as a premium feature. Tomorrow, IPv4 will be the premium feature.
Wait, you expect any low-cost ISPs to offer IPv6-only, and have any customers at all? And that IPv4-only sites will say "gee, better support those IPv6-only users" instead of saying "get a better ISP" (or more likely "We have no idea what's wrong, but it works from Comcast, complain to your ISP")?
I don't think you understand how the Internet works. Or business. There is no foreseeable point at which it makes sense to bill an "Internet" service that's IPv6-only. That's doable _after_ the transition, but expecting that to happen now is not a transition.
You're expecting altruism or geekiness on the part of every single website ever -- it's fair to expect that from Google, but not from everyone. The transition may or may not be happen_ing_, but it will never finish.