Indeed. And it's not only websites, either. Consider all the people who still use sysvinit and (a fork of) GNOME 2. (Yes, I think many who oppose systemd do so

Indeed. And it's not only websites, either. Consider all the people who still use sysvinit and (a fork of) GNOME 2. (Yes, I think many who oppose systemd do so because of the UI change.) And consider the much larger group that initially opposed that were strong opponents for a while but have now moved on.