The requirement is there as one method to deter duplicate accounts from signing up to the same airdrop. Imagine someone making 1000's of accounts and requesting the airdrop. By putting an artifical required amount of ETH, this problem is somewhat alleviated. Of course it doesn't do much.. since the scammer can still distribute their ETH over multiple accounts, but it acts as a deterrent and makes the process slightly harder.
Now I understand why they have this requirement but how they can know that I have 0.1 or anything in my wallet? Do I have to transfer coins in order to participate in the Airdrop?
