Headings and the Seinfeld Pitch.

Oh, and also anyone using assistive technology (AT) would have a hard time. I mention them last because I want to stress that, in fact, all of these things rely on the same stuff. It's not just "people using screen readers" who need this. You too, effectively use (and will increasingly use) a kind of AT.

I am not sure I understand the whole article or its intention, resp. Partly, because I am not following the inner workings of the W3C and HTML standard formation, partly, because I consider the writing’s wittiness gets into expressiveness’ way.