Ive received between $0.06 and $1500 from airdrops. I used to run an airdrop telegram channel i think its pretty hard to get anything over a dollar without referrals
airdrop that are paying you for are rare you cant even find them in a very quick i believe that are some airdrops are scam but the paying airdrops are hard to find well i am agree for you that it may also depends on referrals.