Why let them grab it? Set a cutoff score. Those who meet the criteria can grab, and those who do not meet the criteria should not grab. Every day, they just wait to grab airdrops but can't get them. Every day, they do nothing but wait to grab airdrop; this policy should be changed quickly. It's just like the college entrance examination; if your score is not enough, you are not allowed to apply. If the score is not enough, there is no need to let them try to grab it. If it's enough, then it's called a grab.