I don't even have to engage in transactions with myself, but create a small cartel that really love each others' transactions. Think of the good old link farm s

I don't even have to engage in transactions with myself, but create a small cartel that really love each others' transactions. Think of the good old link farm sites from the early days of Google. You pay, and a bunch of positive feedback is provided between sites. In your case, you could even do the opposite: Pay me and my friends, or we will dislike every transaction you will ever make. Built-in racketeering