I feel like I'm pretty good at getting a vibe that someone is shitty, but I can never pinpoint why so I don't say anything since I wouldn't want to baseless accuse someone and no one would take it seriously anyway, but I'm right a lot of the time. Then again I've interacted with people I thought were very cool because they'd posture themselves as woke and lefty but then laugh about getting someone arrested for shoplifting or they have a nazi uniform "fetish".