It helps focus the role of block production on the right pool size so that it can strike a balance between profit and decentralization costs. Also provides simplicity and speed. Also much easier to upgrade the network to provide fixes and features.

I understand why you think that, but you will eventually learn that this is a false tradeoff that doesn't have to be made. Stay tuned...

Btw, I looked at your code (presuming you are the coder of Steemit). You are a top-notch coder.

So, voting makes this much better.

Voting is not a panacea.

Realize who ever controls the majority of the stake can control all of the delegate witnesses and thus can choose to pay themselves as much of our money as they wish.

And the voting system of rewards has the same flaw.