Recently, market conditions have limited trading opportunities, so I started to think about whether there are any mechanisms that can help reduce costs while still allowing normal trading.

I noticed that some exchanges are promoting contract mining, so I clicked in to take a closer look. Interestingly, this logic isn't complicated—when you trade USDT-margined contracts, you naturally incur fees, and contract mining simply refunds this part of the fee to you, effectively offsetting some of the trading costs.

It's not the kind of complex activity that requires additional locking of funds or completing tasks to participate; you just trade normally, and the system automatically refunds the fee. For traders who frequently trade contracts, this can indeed effectively reduce trading costs, especially when opening positions often in volatile markets.

From a trading perspective, this kind of mechanism is a mutually beneficial design between the exchange and active users—exchanges gain trading volume, and users optimize their costs through fee refunds. If you're already engaged in contract trading, this fee refund mechanism is definitely worth paying attention to.