Answered for nvALT and StackExchange Link
More fantastic work from Brett Terpstra.
Once loaded, you can click any answer on the page and it will be converted to Markdown (including comments and source links) and returned.
I use Pinboard with notes to track my StackExchange gems but this is really powerful too. Importantly, the notes are available offline and easily edited and expanded on. Watch the video. It’s nice.