Open the Binance APP--Funds--Contracts--Today's Profit and Loss--Funding Fees and Trading Fees, and you can see your fees for the past year. For high-frequency contract traders and those with large positions, your fee expenditure may exceed your principal in just one month.

Therefore, you must enable commission rebates; the fees that should be returned must be returned. If you don't enable rebates, all fees go to the market. By enabling rebates, the trading fees will be returned to your own account, saving you at least hundreds to thousands of USDT in fees each month.