I don't disagree with that sentiment, but if you're doing it for a friend or relative (which is the more likely scenario, as corporate is a whole different ballgame), do you really want to be doing tech support for the next weeks/months/years on noscript, or maybe just once every couple years when they get a virus? A virus is one thing that they can feel responsible for causing, but if you make it so they can't view most of the internet easily, that's your fault in their eyes and sure as shit you're going to get that call. Or you're going to make them all pissy when you tell them that since they can't learn it, you have no time for them.
If you're paid tech support somewhere in a corporate setting, maybe you don't care, but if it were big enough it would still be vastly easier to just reimage the drive than deal with everyone in the company not knowing why they can't view the page they want to view.
And that still didn't answer my question about not installing java, which guarantees even more hassle for you (even if we all agree it is a pain in the ass).