When Batman trolls the online chat rooms, what alias does he use?

Batman uses the alias "JonDoe297" when trolling online chat rooms. This particular alias is chosen because it effectively camouflages his true identity, as "Jon Doe" is a common placeholder name used to represent an anonymous or unknown person. The addition of the number "297" helps to make the alias less generic, giving it a sense of authenticity without directly revealing Batman's true motives or intentions. By adopting this alias, Batman can discreetly interact with individuals in online chat rooms without raising suspicion or alerting potential villains to his presence.