I love the idea of earning a reputation based on how much you tip! As I just said in my post to techcrunch: We do expect that there will be some average amount of tips per piece of content which are never paid. As we collect more data, we'll be able to tell content creators what percent of their total tips earned they can actually expect to collect. Since it's free digital content, we think that a collection rate of less than 100% shouldn't be too much of a problem.