Cancel culture probably should be #2, it's debatable if it even scratches the surface of achieving #2. It seems cancel culture is not interested in people being dishonest, or spreading misinformation intentionally and maliciously, it's more concerned with enforcing new social mores against dredged up old statements/actions. That could be a good thing, in and of itself, but it doesn't help solve the spread of misinformation and conspiracy theories.