As I see there is already a bounty campaign for verify union, as I know airdrop means earning coins and tokens in effortless or easy way, so UC is asking airdrop seekers to just promote in simple way, so it will be a win-win for the ICO and promoter.

As I understand bounty has strict and specific rules to get qualified for rewards, for Crypto lovers who cannot qualify or want to grab more free coins, this airdrop is the way !

In summary this is quickest way to earn UC coin without investing ETH, we can grab UC coins with minimal efforts