I thought of this option and the reason I shy away from it is because it becomes a multi-level marketing (MLM), which would most likely fuel the Ponzi scheme fire. I strongly feel a cap on the reward that is more or less earned by choosing strong referrals or help the not so strong ones along will a more uplifted vibe in the community. I can easily picture anger rants about the people who got in earlier are siphoning off most the reward for doing nothing, even if they are doing things. With everything transparent it would be easy to choose targets for negative rants.