I guess these airdrops are going to be totally scams in the very near future. If you need to pay the rent, just create a website, a token and advertise. Then ask for .01 ETH to participate in the airdrop. Sounds pretty good to me. If a 1,000 people sign in, consider the rent paid. Then they disappear and repeat the same thing next month.
And everybody is concerned about bots completing multiple registrations. I think we need to be concerned about bots creating multiple Airdrops.
Just my 2 cents.
Basically these token airdrops started as:
1) Giving air drops
2) Doing bounties
3) Stopped providing white paper
4) Stopped providing any information
5) Started asking for 0.01 ETH to sign up for the airdrop
6) Started asking for donations
Yea it's fairly blatant that lots of these airdrops have become shit.