What Is the Risk a Miner Retains Even after Paying a Pool Fee?
Even after paying a pool fee, the miner retains the price risk of the cryptocurrency they are mining. The pool fee hedges the variance risk of finding a block, but it does not lock in the selling price of the coin.
If the cryptocurrency's price drops significantly, the miner's revenue in fiat terms will decrease, potentially making the operation unprofitable despite the stable coin payout from the pool.