The rewards for the recent trading competition have finally been distributed, but what I received was a mainstream coin. Reflecting on the previous Christmas event spot trading tasks, I realized how significant the hidden costs really are. At that time, the trading volume reached over 7,000, but after deducting the spread and fees, the profit was almost negligible. This is the reality—while the competition seems very attractive, in practice, slippage losses can eat up most of the gains. If I want to participate in the next round, I need to calculate the costs more carefully.