> It's just a lot of work for honestly not a lot of gain just yet. Things like HTTPS and HTTP/2 are far more impactful for users. We'll get to IPv6 eventually, but it's unlikely to happen any time soon. There are simply far more impactful things we can do with our time on the sysadmin front for the foreseeable future.
> This is something everyone on our SRE team would like to do. We just don't have the time yet, even more important things are in queue.
https://meta.stackoverflow.com/a/348224
Other services sit on giant heaps of ipv4 space and see it appreciate. For them, price increases are wonderful, because it means they can charge higher rents for the ipv4 space.