I host my blog on small machine somewhere in OVH. As part of package I got IPv6 address for it. Five minutes ago I decided to no longer use it.
My home Internet provider (UPC) does not offer IPv6 addresses so testing is my blog (or other pages/services I host) reachable via IPv6 was always problematic. Ok, I have sixxs.net tunnel setup on one of routers at home but it is not fun when your browser (and other tools) decide to use IPv6 instead of IPv4 and slow down from 250/20 Mbps to tunnel speed.
So when today I got information that something is not reachable via IPv6 I decided to just drop use of it on server. Will fix configs but do not want to get information that something else break on the other day.