Honestly, I have never participated in this kind of exchange airdrop. but if you are in doubt you don't need to participate in it, and if you think this is a scam you don't need to participate in it. Moreover, why do you say this is a scam? Is it because the prizes given are meme coins or because of the conditions for participating in the airdrop?
Indeed, if you feel that way then better not to participate first of all if you don't trust whoever offers it then you are just
wasting your time and your efforts in case you join on it.
Plus, if you think it's just a scam then you are only risking yourself, better to stay away and not to participate.
Just curious if what's the reason why he thinks it's only a scam, what's the basis of his claim?