Honest question: how much of this is left? What popular sites are still accessible this way? HN might be the only site I visit frequently where browsing with no js/css has any hope of working.
I get that some people have low tolerances for things not being perfect. CNN stories without JS usually have a pile of empty images at the top, for instance. But that is probably fixable; I just haven't bothered to figure out which bit of JS to allow for that.
Usability depends on your tolerance for imperfections vs. your tolerance for being observed.
[1] Current setup uses JS Blocker 5, uBlock, an aggressive cookie manager and my home proxy, which does a ton of things, many of which I don't even remember at this point.