....The amount you earn is based on the amount you contribute and the quality of content you create.

These words sound to me like a bold statement.

In what UNITS this "amount" is measured?
What is "quality of content" ? How exactly it is determined? Who makes this determination - a human, or a computer? If computer , then it must be some clear and hard criteria, formulas, coefficients, algorithms involved. What are them ? How they work?
What I am really missing - is a lot more transparency, what exactly makes RANK and pool-priority figures high ( or low), and in what degree ???
And how all this corespond to a participants ROI ?
To me personally - all what matters is ROI. Not the absolute numbers of upvote qty, or collected Steem/Sp on upvotes. But only the ROI % - the Return-on-Investment. We invest our SP ( Steem-power), and want the good returns, right?
Shall I keep my SP with shadowbot, or maybe it is 5x times more profitable ROI % to delegate my SP to minnowbooster ( or any other bot)?
How excatly I can raise my ROI ? Not the amount of upvotes, or SBD collected, but the ROI PERCENTAGE?
Which of these accounts will get a better ROI?

A or B? C or D? E or F?

It seems to me more and more, that there is little (or none) of the fixed, clearly determined algorithms in shadowbot, and more everything is based on subjective, human (dev's) evaluations and actions.

Good thing is - everything is Burned in stone" on blockchain, so not easy to hide and obfuscate all this as a fair game.
The bad thing is - it takes much time, (and knowledge) to explore all blockchain data properly.
And even if this data outcomes will show reality is different from what it was declared - will it eventually change anything?

Some times it is more easy and rational - just LEAVE....