zlacker

If you got the rfc changed today, I suspect you wouldn't be able to reliably use it for about 20 years. 5 years for everybody to pick it up in new software, 5 years for new hardware to not be shipped with the old software, and 10 years for all the old software and hardware to die out.

And all for what? So you can cname example.org instead of www.example.org? Doesn't seem worth it. Also, consider that in 20 years, we're likely to consider IPv6 only servers, and a host can more easily offer you a IPv6 ip that they can commit to serving your traffic for a long time on. It's a lot harder to be flexible with IPv4 addresses.