[greggman]

Disqus does code comments just fine. See other response.

Other things missing from a static site generator though include being able to post from a multitude of devices. To post to a static site generator you generally need a full desktop. Or at least that's my experience.

[pocket]

Not exactly true. I use jekyll on a VPS, store my site's content in a Dropbox folder kept in sync on the server, then use inotifywait to watch for new posts/updates to existing posts and kick off a site regeneration. This means I can update or post using any mobile/tablet text-editing app that supports Dropbox.