Common practice in Worm, where both superheroes and rivaling super-villains will gang up on anyone causing enough trouble or breaking the unwritten rules, such as attacking a cape's family.
"Word gets around, and the cape community goes after the fucker. Protecting the status quo, keeping the game afloat. Bitter enemies call a truce, everyone bands together, favors get called in and everyone does their damndest to put the asshole down."
- And when Endbringers attack, virtually every parahuman available will come together.
"This is why we are tolerated, why society allows and accounts for the capes that walk the streets and fight in its towns. Because we are needed for situations like this."