Pageviews are easy, especially on a social picture aggregator. It's not hard to imagine one person clicking on hundreds of images per day. The hard part is trying to monetize these pageviews.
It doesn't take a kick-ass team to put up a link farm and spam it out. It takes a kick-ass team to profit from it and not tank the reputation. Digg failed. Reddit is struggling. I'm not sure 9gag will do any better.