Miranda Fox said:Besides, the whole 'escalation' comment was an indication that the villians - like Batman - would be adopting personas. The names are part of those personas. Also, it's a chance to see Batman's detective work as he tries to find out who these people were. Nothing wrong with villians naming themselves.
Doesn't the Joker have a habit of referring to himself in the third person anyway? As in 'the Joker has spoken?'
I think you need to watch the end of BB again because Gordon never talks about villians taking on personas due to escalation. He's talking about bad guys or the mob upgrading their arsenal and things might be getting out of hand. The he brings up a possible case for Batman to look into: "Joker"