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i'm always worried about airdrops and what data they collect, as I previously signed up for some which now make me think like why do they need ETH address and other details?

eth adress, give only your public key!
never to nobody your private.

You post good airdrops but it's difficult for airdrops to get listed on better exchange.

thank you! :) it doesnt matter. When there are good projects, is it enough when one of ten airdrops pumpin up.
I remember the airdrop from hydrogen. it was after a week a wealth about 1400$!!! for ONE airdrop ;-)

Do you like to earn more money with crypto? You like more free high-potential Airdrops, then spend a bit time to look at these:
https://steemit.com/busy/@fux/special-airdrops-and-bountys-6

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