And how many people still use FriendFeed? It is now overrun by auto quote bots and viagra spam. Also, I don't see how facebook approving of something makes the idea any less idiotic.
Just to be clear, this guy didn't invent feed aggregators. There are a bajillion of them. You've got a beef with society, not this guy's work. He's trying to make money serving an underserved niche. I hope he makes a billion dollars.