Most of the time when you put JS on your page, what you're doing is breaking the thing that would - without JS - still correctly do what it's actually supposed to do.
While I generally agree with the sentiment of "do more by coding less", and minimalist user interfaces, there are plenty of cases where you throw a whole lot of functionality out the window by outright banning JS.
While I generally agree with the sentiment of "do more by coding less", and minimalist user interfaces, there are plenty of cases where you throw a whole lot of functionality out the window by outright banning JS.