The same day as the notice, an internet petition to save the profiles feature has 900+ signatures! If you're pissed, add your name to the list:
http://www.petitiononline.com/netflix0/petition.html
Also, don't forget to send Netflix a personal "suggestion" letting them know just how upset you are by this supposed "improved customer experience:"
http://www.netflix.com/Suggest?type=2&lnkctr=cu_suggest