If we knew the answer to that question, then one should be able to fire up Google Sidewiki, which has been out for 9 months now, and go read copious comments on

If we knew the answer to that question, then one should be able to fire up Google Sidewiki, which has been out for 9 months now, and go read copious comments on the pages of Daring Fireball. As it stands, there are a few on the front page — all old — and none that I could find associated with article pages about the lack of comments.