I still and never joined any airdrops because my friend got scammed in an airdrop. Thats why my trust in any airdrop campaign is 0%. I do not trust those kind of campaign where you wont do a lot of things and earn an easy money
Most of the time, those method i have said is more likely to be a false or scam. Thats why i prefer bounty over airdrop. Since there is a 60 to 100 percent rate than airdrop.