Maybe you aren't giving yourself enough credit?

I just typed this comment using a plugin that gives me vi bindings inside the editor, on a page where I have increased the font size to 110% because I personally find it nicer that way.

All done without the permission of ycombinator and yet working perfectly with their web page. And this is not just because ycombinator has very basic HTML ... this works with at least 90% of web sites I go to.

It may not have achieved its loftiest aims, but I think the open web is an absolutely amazing achievement and success if you compare to what we would have had without it.