RE: Is Proof of Stake the main issue behind Steem?
I think that all the systems are flawed and what it comes down to is the human will to be part of a community or not. The stake growing is not a problem if it is used to spread toward the flourishing of others as patrons. At this stage, the best case scenario would be very community interested whales looking to widen their patronage.
Incentive to do so is limited by the gluttony of humanity though. It is a problam that goes to the beginning of time I think.