> And yet none of the websites that I enable javascipt on have essential javascritpy features, but they merely don't present the content in plain html.

You're right, that can be a significant problem. Often what I do is to turn JS on and let the page load then turn it off again. When I encounter Smart Alec sites that try to catch people like me out by refreshing JS every few seconds, I either toggle network access to the internet off or capture the text by various other means.

There's always a solution one way or the other.