has anyone else started using calculator style words in #ipv6 addresses ?

yandex dns http://dns.yandex.com/advanced/ are using :feed:, :bad:, :off: and :all: calculator style words in some of their ipv6 dns addresses ! accidentally or intentionally ?

see also

the truth about beer

1ce:c01d:bee2:15:a5:900d:a5:11fe

(ice cold beer is as good as life)

http://royal.pingdom.com/2009/02/06/ipv6-playtime-hiding-sentences-inside-addresses/