Protocol fees cover the costs of monitoring and closing positions, while also saving all those other traditional swap costs, free to CivTraders who also earn liquidity fees. No protocol fees on market orders. Based on historical data on earned liquidity income for limit orders, protocol fees upon auto-closing are 0.09% of traded value on Polygon and 0.39% of traded value on Ethereum mainnet. Not only do you save money, but also you earn 50% extra fees without having to worry about your position at all!