I do not see a need to penalize them, firstly the Airdrops are no longer profitable, for me the sense of the money to earn it goes in another direction, the Airdrops were the maximum for the year 2017, and for 2022 this is not the same, penalize some Bounty hunting for doing it does not make sense, for me the money is going through the business of nft games, pre-sales and public sales, but this is already entering with money, it is not making money from scratch, I think things are They are leading in that sense undoubtedly, now in 2022 with the metaverses it is expected to be of another level.
Most airdrops are unprofitable, but there are some which give huge rewards to their users. Uniswap and ENS have been one of the most rewarding airdrops in the crypto/Blockchain space. With rewards of more than $1k, you can expect airdrop hunters to abuse the system for their own benefit. That's why it's important to introduce some restrictions in order to help prevent your cryptocurrency or token from going all the way down the drain. Giving out small rewards will minimize the coin's downward pressure in price. I've seen some airdrops requiring KYC to participate in them, so there's that. Crypto was never about free money anyways, so I wouldn't count solely on airdrops for the whole space to thrive in the long run. Just my opinion