Really? Care to describe your method from profiting on the back of this scheme?
Scheme, backside, hmmm. AH, you're talking about private enterprise and the open market vs state control! Still not sure what you want to know about it.
I mean, you already know that other stuff being equal a market price transaction goes through when the highest offered bid meets the lowest price asked, and that entrepreneurs are constantly looking for market niches which is constantly making trading more efficient therefore more profitable. We also know that that onlookers often try to chisel a percentage without doing any work so they call for government control.
So when I trade I find the HFTers pay me more when I sell and they ask less than the other seller when I buy. I profit. I like profit. I don't like gov't interference stopping my profits. What am I missing?
Seriously, I understand this (like all new market niches) is controversial and that the discussion often tends to generate more heat than light. Please forgive my focus.