Basically, we're the people in on the ground floor of steem. That's why it's paying so well.

EDIT: About 60 million Steem is not powered up. This is about 25% of the total supply. Also, if Steemd.com were fully operational, we could look at active user accounts. Last I looked, there is about 50k accounts active in the last 30 days. 50k people spending 45 million per year, most if it spent by the top accounts.

I think the simplest change would be to just make a greed bot to monitor the heavy abusers of upvoting yourself. Then steemcleaners and others can swoop in and we can start flagging those people. Begin with warning that they're approaching the greed threshold and there you go, they'll back off.