I dont know what you think guys but i think airdrop and bounty kill the project let say after the project finish the ico all the bounty and airdrop hnter sell their coin/token , this make te price go low.Since all of bounty and airdrp hunter did not care about the project.
In some point it can be part of the reason why some project tends to goes down but still we cannot just tell that bounty and/or airdrop are killing projects knowing that those bounty campaigns and airdrops are making the hype to all the project by promoting it to many investors.