For sure the reward system will need some fix to avoid that only the most powerful accounts control all the system: we aren't here to enrich a new Mark Zuckerberg with our own work. But we can be optimistic regarding this changes, because they will be profitable also for the accounts with more Steem Power.
This is a very true and important statement.
RE: Why Steemit isn't Ponzi scheme. [3 minutes read]