For streaming of internet TV content, it would be useful to restrict adult content in a family environment. The folks at VLC have set the precedent for this kind of feature in Shoutcast. Perhaps WiiMC could do something similar. From the VLC wiki:
http://wiki.videolan.org/VLC_command-line_help
–shoutcast-show-adult, –no-shoutcast-show-adult
Show shoutcast adult content (default
disabled)
Show NC17 rated video streams when using shoutcast video playlists.
(default disabled)
-hd