because they don't have to be. when you own 20% of the entire Internet, you can just do whatever you want, very few can compete

They expect us to be ready...

GitHub does not even have an IPv6 address.

aws is many things but 'incompetent' is not one of them.

explain that page any other way

AWS has spent billions (with a b) on ipv4 addresses: https://news.ycombinator.com/item?id=36991477

This investment wasn't just of a strategic nature: they have enough market power to hold back the move towards ipv6.

how does reducing your competitiveness in the ipv4 market (what they've done today) hurt ipv6?

it will have the exact opposite effect