Ok, good point. My problem is sites where it is reasonable to expect them to work without JS, but end up not working at all. I would never expect a specialized site like Markup.io or asteroids-on-a-page (forgot the name) to work without JS. News sites, portals, blogs, shopping sites, etc, are all fair game for no JS (like you said).

By the way, not sure if you're the author of Markup.io, but it's pretty cool.