Can not expect what is done in the airdrop all average zero after we've done so far and the biggest maybe now only $ 20 or even less, the best promotion right now is airdrop where many people like it so many projects that do airdrops like this , but I am not sure even though the price is significant in an instant but the rewards from the airdrop will remain the same.
It will since the tasks in airdrop are usually easy ones and airdrop doesn't have a long period just like bounties does, so that's that. Given the time it takes I wouldn't consider it as waste.
I have noticed that recently the payouts that come for bounties are approximately equal to those that come for airdrops. And this is not correct when comparing the amount of work that bounty hunters do in bounties and airdrops. I understand that this shows the attitude of ICO teams to the amount of work that bounty hunters do.