It's not the same model by any means, but nice try at asserting that a donation based system is the same as a stake based system.

// You get 1 Steem

"Cool, can I buy Bitcoins for this?"
Sure!
The exchange!
Cool, Steemit pays me dollars.
// But wait, Steem doesn't pay in dollars / BTC, Steem pays in tokens. Who pays in dollars / BTC? Investors ...

It does not matter what it's paid in, it's irrelevant squared, what matters is how it has value and why it maintains it. In a donation system the entire value rests on people spending money/giving money, on a stake based system the entire value rests on people staking more than extracting. If they staked dollars it would be no different, same for bitcoin or any other token/store of value.

Steem is a network worse than ZapRead, Publish0x, but without a system based on game theory.

The system isn't based on game theory, at best it utilizes incentive structures based on game theory, it's based on cryptocurrency communities and social media. The "fact" that you think donating money is no different from staking money means you haven't a clue as to distinguish between a zero sum game and a cooperative, everyone-wins game.