The problem with all these airdrops is that people just sign up for EVERYTHING, because it is free. People also buy all these shitcoins without any logic behind it, except hoping that it will moon. So then the devs can unload a lot of their shitcoins and get free money. For many the airdrop is actually reversed: the devs get money from the participants. So just be a little bit critical and don't hop on things that don't even have an ANN.