I know that we can earn money through airdrop because airdrop is free coins and giving opportunity to anyone who want to earn eth token, but my question is anyone here who got rich because of joining airdrop campaign?
Rich? I guess no one got rich by joining airdrops because obviously airdrops now don't have any value and if you're referring for airdrops before, yes they have value but it's just enough to say that it's literally free. Hence, stop wasting your time in airdrops because even you join them all you'll not get rich anyway.