so ahhh these people who were receiving airdrop really installed the wallets in their computer and that they have checked whether there is nothing to it like a worm that will one day fuck their system that will result to them being hacked? maybe sniff their logins especially the myetherwallet logins?
It only takes a single CEO to put a virus on one of the wallets that they are using and all the coins that someone has could get withdrawn all because they were greedy enough to join an airdrop.