So in reading the Stephenson article on Kotaku just shared by Davis about an hour ago, I noticed that they can annotate, not just images, but specific paragraphs in the article. I assume this is in the offing for us as well?

I guess someone thought it was a cool idea.

I don't know it really gains much functionality for me though, as I've been quoting text in articles and other people's comments for years now, just by using the quote button in the editor or by just by using italics back when the comment form accepted a limited set of markup.