In wrestling, booing is a form of currency. Without a cadre of hated heels, the heroic babyface would have no one with whom to do battle, no odds to overcome, and no foe to ultimately vanquish. Drawing heat is an art form, and superstars who can do it well will tend to find themselves in lucrative positions, especially if they’re antagonising a hero of sufficient magnitude.
There’s good heat, though, and then there’s the kind of boos that mean something entirely different. The kind of boos that don’t mean “we want to see you get your comeuppance” but rather “we want to see you get your release papers”. It’s not always the performer in question’s fault - in fact more often than not this is down to bad booking, overexposure, personal matters, or simply fans taking the whole “kayfabe” thing far too seriously. That’s not to say wrestlers never bring it on themselves - rather, it’s a funny old business in which things can go terribly wrong.
These superstars hopefully subscribe to the old adage “there’s no such thing as bad publicity”. Fans found them impossible to ignore, but for all the wrong reasons.