airdrops campaign on gleam and other platforms.

[Adbitco]

This is not possible to do, whenever you applying for airdrop and you join their group and also followed all the required instructions needed during submission you went on given another username while join their group with a separate username automatically you are being disqualified because if actually the bot check and didn't see your correspondence username you would be kicked out of events or contest.
So you must use a unique details and same details you would submit on their google form or to their robot and site in order to receive your airdrop rewards.

[Flexystar]

You should anyways joining with main account only. There are people who are so greedy they would end up creating multiple accounts and join the same airdrop again and again. This disturbs the mods as well as quality of airdrop - considering everyone started doing the same thing in same airdrop. Moreover, you always have an option for "referring others". If you want more free drops then just refer others, plan strategies accordingly. There are hundreds of micro task sites where you can publish your ref links and earn white and decent commission from there. I think with the time quality of airdrops has descended so be careful while investing your time and planning any strategies.