The engine is HTML. No more is needed to give me the information I want, though CSS and images are certainly nice. JS would be more like the infotainment system: Sometimes nice, sometimes annoying, sometimes dangerous.
That was certainly true in 2005, when JS was used more to impress the audience. The modern internet is mostly useless if you do not have JS running. I would imagine you have to turn it on and off all the time because you can't do simple things, like log in.
Eh, it took a few cumulative minutes to build a nice whitelist and I don't ever notice it. I do notice it, however, when I visit a news site and I'm not inundated by confirmation dialogs, ads and two auto-playing videos at once.
It's like turning your car's engine off overnight because that uses fuel.