I don't disagree at all. I'd probably agree with the statement that most sites would be better without most of their 'enhancements'.

I just don't want the HN party line to become a knee-jerk "all js on content sites is bad".

I'm a big fan of pjax etc as it can really speed up page load without any downside (assuming it's been implemented well). If the UX is good, performance are as fast or faster as a plain HTML site, everything is bookmarkable and you don't break my back-button then go crazy.

And on the whole I actually like the new c2 wiki.