There is nothing interesting about airdrop again since many of these team in charge of airdrops as seen it as an advantage to scam many of their customers. Just imagine doing consecutive transactions just because you want to be eligible for airdrop. This does not make sense at all and we need to stop giving our money to all these airdrop projects that don't even reward their community with enough based on their different promises which doesn't effect the time and effort the community has put into the project success.
Multiple airdrop projects are not trustworthy, but community members get deceived because of the number of participants taking the tasks. Developers with large following easily bend users to any available term and condition. In as much these people comply, the project owners can decide not to pay or even shut down their channels once they've achieved their goals. Most participants know about this, that is why they prefer going for various airdrops.