As I understand the AI arbitrage gives you 99% back of all the profit you make, so there is only 1% fee. This fee in return will be distributed (minted) towards the holders of ACO coins, giving them eACO (which eventually disappear) and be used only inside ARISEbank. What I am more curious about is what they are supposed to be used for, and how exactly it will drive up the price of ACO. Seeing as they vanish they have no real value, so other than some automated services there could be no permanent coin/human effort to trade-in for it.