Has anyone seen a crypto project where the devs distribute airdrops by asking people to send 0 ether? I have been involved in 2 of these types of airdrop but both failed, was dead, plan did not materialize. What would be someone's motivation in doing this kind of project?
Well you want to know the possible reason why you got no pay in airdrops.
No. 1 your chosen project for airdrop failed, the ICO failed thats why you did not recieved any token after the ICO end.
I would also like to say that do not focus on airdrops join some bounties you dont need to invest or pay any amount n the line just need effort to gain more than the 2 airdrop you joined and failed to received any amount.