I already use noscript, but most people won't like having to hit 'temporarily allow' and reloading the page 1-3 times before most sites will function. Also, sites that lean heavily on trendy frameworks like fucking React often just white-screen because of their extreme reliance on JS. I'm hugely against its adoption for that reason, but I understand that I'm in the minority there.

I dunno, it just seems like common sense at this point. Javascript is a powerful attack vector, like ads. And many people already use adblockers in some capacity, for that kind of reason.

It'll definitely suck as HTML5's various peripheral features become strong and widely-used attack vectors.