90% fake Airdrop so How we can understand real or fake Airdrop. It is my personal opinion that before doing any work for airdrop. Must you have to do research about that token such as:-
Website check
Team members
Partners
Social media group
Review of that coin/token
Website ranking
People comments
After checking if you are satisfied then you work for that coin/token.
Is that okay or have anything else. Please expert suggest me.