The question really is how much degradation do we make IE6 users tolerate? My feeling is: quite a bit. I'd much rather this minority took the pain instead of holding back everybody else. Since our sites are all (naturally) semantically marked up and pass accessibility guidelines, they will make sense and work just fine with styles and javascript disabled. So the simple answer is to give IE6 users the old Netscape 4 treatment and disable all CSS and js for them.
