OK, here's the scenario: I log on to HN with JavaScript disabled, do all the things I do, read articles, submit posts all without JS. At some point I want to search HN so I hit the 'toggle JS' button on my browser, it then goes from red to green to tell me JS is now active. I then refresh the page and start searching HN. When I've finished I hit the JS toggle and the button goes back to red - JS is now kaput.
I really can't think of anything simpler - JS is off until I really need it and when I do it's immediately available without digging deep down into menus etc.
I'd add HN uses JS as it was originally intended and does so responsibly. I have nothing against JS per se, the problem comes from websites that abuse webpages and thus the user by sending megabytes of JS gumph and so on.
Running without JS and only turning it on when really necessary I reckon is a reasonable compromise.
Lucky for me, I can toggle on JavaScript for them individually and continue with my general policy.
There are stacks and stacks of them here on HN that are of excellent quality - I use HN as my 'quality' filter (and I reckon I'm not alone).
Moreover, if one doesn't run JS like me then it's dead easy to avoid problematic sites as HN lists them (Twitter, etc. - and it doesn't take long to get to know the main offenders, thus avoid them).
:-)
BTW, I agree with you it is hard to find good sites these days but eventually most really good sites appear here on HN. Do what I do, when you come across them bookmark them.