Anytime I go into my telegram account, I see countless number of airdrop with countless offers but the challenge is trying to know which of this airdrop that is genuine.
See what the task you have to done, if there is some task who ask you a personal identity it is not worth at all. Although the airdrop is legit and pay all participant at the end but it is not worth if you pay with your personal identity, avoid this airdrop.
The airdrop event only has a few task and it doesn't need a long time to complete all the task. So, I don't think you need to know the airdrop is scam or not, just be cateful with the airdrop who ask you personal identity then you have to leave it.