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Should I follow this?
They're free, right? I think it's okay if you want to follow them or not. This kind of airdrop usually just to attract more followers on the related account. The problem would be in the later, about whether the token will have a value in the market or not. Oh wait, is it listed already? Which I kinda doubt that was the case. So this kind o token, it;s only either it the value will be very low or just any other shit-token in your bag.
As long as it's free and that they not require KYC or any other personal details from us then there's nothing to doubt. But don't expect too much or put effort too much waiting or being updated as it may not also have value. Why gie it for free anyway when it have a big value. It can be used by some application of their product at least to be useful.