And what makes those "standards" different from "another framework"? A rubber stamp from W3C?

Yeah, and usually a compliance test suite. And nowadays browser vendors even seem to be quite active in implementing these things.

See for instance http://blog.chromium.org/2013/02/hello-firefox-this-is-chrom... and https://hacks.mozilla.org/2013/02/hello-chrome-its-firefox-c...

In general, I'm curious about the hatred here on HN towards W3C. Sure, standards often move slowly, but it is still the best way to achieve interoperability.