> It's even more relevant now with all the front end > JavaScript frameworks that so many web apps rely on > these days.

Hardly. The number of people who chose to disable JavaScript is utterly dwarfed by the factors that get in the way of JavaScript successfully executing on the page.

Very simply: A browser can not execute JavaScript it hasn't received: http://isolani.co.uk/blog/javascript/DisablingJavaScriptAski...

You are reliant on factors outside of your control. For example, a well-intentioned DNS Blacklist took down loads of Fortune 500 companies: http://www.theregister.co.uk/2012/01/05/google_opendns_clash...