best practical way atm to tell crypto users are "real"?

farcaster power badge, ENS older than x date, worldcoin credential...any others?

Depends on the profile but if they have a real name and a project they are building, look them up, look up the project they say they are working on, and use your existing network to see if people have connected with them. 

We've had instances of "real" users on farcaster joining and interacting with the community for months, pretending to be building a project, and then later maliciously drain wallets. Simply put, being a bot makes somebody obviously not "real" but theres "real" bad people out here too 🤷🏻‍♀️