What hosted-commenting tools produce clean markup?

Question

You may be familiar with IntenseDebate, Disqus, and their ilk. These tools produce wretched markup that pollutes my pages significantly and is difficult to style correctly.

I have a site which is statically generated. Are there hosted commenting options that are simple, clean, unobstrusive, and easy to style?

Answer 1

The solution I settled on was using hosted-commenting JSON APIs plus JS templating. You give up the social-media button widgets and you have to roll some of your own comment form, but that's ultimately a small price to pay in my book.