>>16048993It's because he's good at his job.
The really great wrestlers don't need to do good things or bad things to be hated or loved. Actions are a substitute or events needed to tell a story. Body language, small movements, these almost undetectable things that create an aura are the key to influencing and becoming a good heel or face.
Somebody was writing about The Good, the Bad and the Ugly on here the other day. It's a really good example. Lee Van Cleef just looks like a sadistic badass in that movie. The fact that Eastwood is by no means "good" doesn't matter because a demon would look good stood next to Van Cleef. It was a presence or a charisma. You didn't need to see the movie to know that he was the bad guy.
All great wrestlers can project this. If you don't know why you like or hate a person then they're probably doing a good job.