0% Approval Rating refers to characters who are completely loathed within their universe. Basically, nearly all in-universe characters are aware of how evil the villain is and hate them as a result, with hardly anyone actually seeing the villain positively.

Some common examples are Tyrants who run their country in a opressive and abusive way, infamous criminals who are feared by the world, or just regular villains that nobody likes.

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Their opposites are heroes who fall under the 100% approval rating.

Notes:[]

• A villain doesn't necessarily need to be a Hate Sink to qualify, sometimes even comic reliefs and/or morally ambiguous characters can qualify if they're truly hated by everyone, even if they were just falsely accused.
• If a villain is respected by their minions and/or loved ones, but is still hated by everybody else, they can still qualify for this.
• Also, a villain doesn't need to be that infamous, normal villains who are only hated by a small group can qualify if nobody else is aware of them.
• Groups like organizations, species and teams can also count if most/all members and leaders are hated by everyone.