Javascript is used to display content in some web sites, and those sites don't work without it. I describe those sites by the unflattering (and deliberately provocative) name of #Javascrippled. There is no good reason for making a site dependent on Javascript, that's why the <noscript> element exists. I think it's either ignorance or laziness of web developers, or the Javascript is deliberately obscuring content so that in order to see the content, you also have to subject yourself to whatever !surveillance techniques the Javascript enables.