"If Facebook really wants to get profitable it needs to get smaller by kicking-off users who don’t make it money. Then it has to be be really nice to the ones they keep."

As far as I can see, this contradicts most of what he was talking about previously. If you kick the people off of Facebook who don't make them much money, you'll be kicking off the people who don't play Farmville or Mafia Wars, and you will be left with an even worse signal to noise ratio.

Despite that, I thought it was an interesting article.