For the most part, I have given up on AirDrops.  I signed up for the Polymath, EtherBTC and a couple of others but for some reason I don't get my tokens or they'll add some requirement after sign up that I don't want to do.

The only one I am active in is DeepOnion (see signature).  I've gotten my airdropped coins for the past month or so now and it has been pretty easy, no games.  The one thing about DeepOnion is that you have to own 50 coins, be a jr member, among other requirements in order to participate in the airdrop.