May be the best post I have read about Steemit.
Why not

• Cancel the possibility of upvoting own content
• Increase power of minnows and decrease power of whales, orcas
• Cancel the possibility to upvote content of a determined user more than once a day (or week?)
• Other measures to prevent "circle jerking"
• Make reward and voting system more simple, the four "currencies" economy (steem, steem power, steem dollars and vests) is a disaster. In any other ecosystem would be. (+BTC + local currency=six)

or are developers already working on this? How they want to stop abuse of the reward pool?