I'm not at all a no-JS person, quite the contrary, but I frequently note sites that have too much functionality instead of being more boring but also better to

I'm not at all a no-JS person, quite the contrary, but I frequently note sites that have too much functionality instead of being more boring but also better to use. The one thing I learned from the Agile craze is that it's a good idea to start with HTML-only, then add styling, then add a dash of JS where it really helps to improve usability, looks and general enjoyment. Back then of course you couldn't do CSS animations or form validation w/out JS, so today it's even more worthwhile to implement as much functionality as feasible in HTML+CSS. It's worthwhile because done right such a site can have stronger foundations that better survive the vagaries of the web, such as NoScript users, flaky connections or being archived: the more dependencies you have, the worse any archived version will be.