Dear experts, if I earn 15 points every day, and consume 15 points for the airdrop plus the 15 points that expire after covering for 15 days, that's a total of 30 points, and then I replenish 15 points every day. Does this mean that every time I receive an airdrop, I consume 15 points, and the 15 points that expire after 15 days, which means I need to consume a total of 30 points? If this continues, your total points will keep decreasing. Once the points do not meet the standard, you won't be able to catch up. Does this mean that one Binance account can only participate in one airdrop task?