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.
Have a link for Coinnec airdrop? Coinnec (COI) is going to be listed on CoinMarketCap up to 1-2 week - this is only the new update i heard from them at their telegram group. Have any news about their bounty?