The Tor web browser disables most (if not all?) Javascript by default as a security measure.
Avoiding Javascript is an advantage if you want your website to be accessible to Tor users.
If your website only handles basic things like form inputs and it breaks when Javascript is disabled, then you have not made it accessible.
I think by now it's pretty safe to say most websites don't care about the tiny % of people using Tor or disabling JavaScript.
That doesn't make it laudable, or even defensible.
From a commercial point of view it kind of does. If the development costs exceeds the increased revenue it's not really worth it.
Re:You might not need JavaScript
by yellowapple on Wednesday October 12, 2016 @06:38AM
(#12691731)
There's definitely some merit to not requiring users to download and run arbitrary and untrusted Turing-complete code. Whether abusing a stylesheet language to achieve that is worth said merit is certainly debatable, but I for one applaud the effort.
Though, this site is cool in showing the power of CSS, I am not sure if there is any specific advantage of using CSS over JS to design tabs, sliders, etc. Just use the best tool for the job!