you have to be careful, currently, many scammers use new ways to cheat...
having to contribute to the airdrop project is not worthy of being called an airdrop participant, don't want to fall into the trap of a fraud. I almost got into the trap of an airdrop scammer, at that time they told me to send some eth for gas fees but I refused because I was sure they were scammers and it turned out that they were scammer who deliberately took advantage of the airdrop.