I am waiting to be able to sign up for the DeepOnion airdorp and I have heard people say that they are profitable. You need to be Jr member of BitCoinTalk before you are eligble for teh airdrop. I think that is a valid requirement to show that you are active in the community and not just joining to dump. That is still a risk but at least you reduce the risk. I am joining because so far I like the community that DeeOnion has. I will let you know if it is profitable or not when I join!