Algorithms should normalize signals. If a post from [Robert] Scoble gets only 20 comments, that’s a post that is probably not very important. If a post from one of my close friends gets 20 comments, that’s a Really Big Deal—it’s likely a birth, wedding announcement or job change. Those are the things that I really want to know about.
TechCrunch’s Rocky Agrawal Discusses Google+’s Noise Issue