Some people don't want a net nanny. I wonder how many calls to tech support Mac, Linux and UNIX users make because the bloat ware they give isn't working? Some may opt to use other methods of protection.
"Most ISPs now bundle antivirus, anti-spyware, parental controls, and other freebies to attract customers" Antivirus for MAC isnt apple making commericials about MAC not carring about viruses? Anti-spyware? Parental controls is the parent anyone?
