10 DC Alternate Universes You Won’t Believe Exist
5. The One Used To Justify Plot Holes - Superboy #59
Amongst all the various DC universes, Earth-B is definitely the most interesting, even if it doesn't hold the title of being the most crazy.
This is because Earth-B is - according to DC writer Bob Rozakis - the universe that is used to explain when a hero acts out of character, or when a plot doesn't quite make sense in the context of the main universe. For example, every time an anti-hero like Catwoman or Jason Todd is shown being unusually evil, it can be explained by the comic 'taking place in the Earth-B universe' - making the alternate reality a sort of get out of jail free card for any mishaps or mistakes certain issues may have created.
While this is never directly addressed within the comics themselves, it's nice to think that fans can just say any point in a DC plot they didn't like took place in Earth-B, even if this obviously isn't really the case.