He's easier than that to spot: he's the one with paranoid delusions about a secret conspiracy on /comms/, when he bakes he is often the most talkative ID, he uses that position to push his own bad proofs, and the shills love him for the discord he causes when he fucks up the whole system, so they always follow him.
Tips when watching two breads: Open one in a private/incognito tab so they have separate cookies/storage and filtering in one doesn't break the filters in the other.