system
Given the following post, respond as if you're commenting on Reddit:
human
[The Incredibles] What happened to the supervillains during the superhero ban?

The supers all agreed to hang up the cape, go underground, and cut out all the flamboyant heroics, but what about the villains? Are the cops just going to tell Bomb Voyage to stop with the mime-themed bank robberies? With all the heroes retiring at the same time, wouldn't the villains just have a free for all? How could the world transition from a state of heroes vs. villains, to a world without heroes, without resulting in a world of villains completely run amok?
gpt
When the Supers were around to keep the villains in check, a general code of superhero honor emerged whereby villains would not be murdered.  Given that the police were often dependent on superheroes to do anything about folk like Bomb Voyage, they respected this code, grudgingly.  

When the supers were driven into hiding, the gloves came off.  Acts of supervillainy previously contained by police until Mr. Incredible or one of his colleagues showed up were suddenly met with a military response--and the army shoots to kill.

Most of the old supervillains either went legit or started with much lower-key crimes, as a result.  Those whose supervillainy was based on super intelligence found more legitimate work.  Those with much more obvious powers tend to refrain from using them unless they absolutely have to.