well, they are already listed in quite a few exchanges and I think they did not get enouch feedback from traders, this is why they organize a new airdrop. I doubt that this will success.
It got listed on poor exchanges, I can't find this Token on Coincapmarket and I don't think traders buy any token before check it on Coincapmarket. Airdrop only increase sell orders, but it's good to get more followers on social media.
Coinnec (COI) is going to be listed on CoinMarketCap up to 1-2 week! According to the Admin