/bin/ls vs .dotted files

[sad at bestmx.ru]

hi,

it was just discovered that /bin/ls (without arguments)
if called by root-user
lists ".dotted" files
(while expected to hide ".dotted" files unless -A specified)

even more surprising is
man ls
that clearly says: "-A is always set for superuser"
(which is absolutely peculiar!)

WHY????????????????????????