Nowadays many ICOs offer free coins, but we have two problems with this free coins, the first one the value of this coins will drop after start trading due to a lot have free coins willing to sell it, and the second they ask for your ID (KYC), and i think it is very risky to send your IDs to any one.Please vote to help others
Sending kyc for a mere airdrop doesn't worth hassles, i heard those id are gathered to be sold for some $. Firstly the token drop value is horribly small and secondly id sent can be sold.