ELI5: Explain Like I'm 5

Internet vigilantism

Internet vigilantism is like when people on the internet think they can be like superheroes, or dooperheroes, and help people who they think are being treated unfairly. They can do this by trying to spread the word online, or finding ways to support the person they think is being treated unfairly. For example, if someone was bullied online, a vigilant might share their story or make it their mission to make sure the bully stops.