I wouldn't be as prescriptive as the OP, but it seems to me that the vast majority of web sites for 15+ years have had some JavaScript, even if they aren't "sin

I wouldn't be as prescriptive as the OP, but it seems to me that the vast majority of web sites for 15+ years have had some JavaScript, even if they aren't "single page applications". Sometimes those sites will break completely without JavaScript, but very often it's more that parts of them break, or just work worse. I know the folks who advocate turning off JavaScript think that such reduced functionality is a worthwhile tradeoff, but they don't know what they're missing in a very literal sense. And I can't help but suspect the main benefit they're getting is not improved security; it's a warm, fuzzy feeling of smugness. Many of them probably also use Emacs.