IMO, I would say that some airdrops nowadays are just worthless and we know that telegram mining apps just popping out of nowhere and milking people to buy stars or TON and to get more airdrop tokens which I think they will just do an exit scam which people cannot do anything on it.

It's really hard to know if the airdrop is legit and it needs to waste your time first before you will know if their tokens will be on exchange and how many you will be getting.