STEEMIT definitely has its issues (which, in fact, are much bigger than just the ones you brought up). That's also what I meant when I wrote in my other comment to you:
The fascinating aspect of the blockchain, however, is that many interesting ideas are being discussed in an attempt to better address such issues.
What's revolutionary about STEEMIT is that it served to validate the concept of a "gift economy". And over time, if it doesn't adapt to address its shortcomings, it too may very well fade away into obscurity, only to be replaced by an improved model that does better address those problems. But for now, it's still a tremendous leap (at least from my perspective) over FaceBook, Twitter, and YouTube.
And if you want to make the case that everything eventually devolves into chaos and complete corruption well, historically I can't really argue that either, except to say that perhaps certain algorithmic models, given enough transparency and enforced accountability, can serve to minimize some of it...
Link: The Rise and Fall of Empires, Nations, and City States
Link: When There is no Justice – It is Time To Turnout the Lights
You might also appreciate this recent article by Dan Larimer...
Link: Does Freedom Require Radical Transparency or Radical Privacy?