[bluGill]

lacolhost.com should also resolve to the ipv6 record for localhost.

Being able to test locally while using the full internet name resolution system is a valuable thing as well. Though if this is your use case I wouldn't trust lacolhost: register your own domain.

[0xffff2]

It doesn't though. Unless I'm missing something obvious, it only has an A record, not a AAAA.