Back when Dark Knights Metal started I first read and heard about the Batman Who Laughs.
My brother read Dark Knights Metal (and all things Batman) avidly but I gave it a pass.
A while back I checked out some upcoming DC solicitations and Batman Who Laughs was prominent enough for me to realize that the character has gotten some serious traction.
Working in the office, a colleague shared a media posting with me and it was a Batman Who Laughs cosplayer.
I have no idea who the Batman Who Laughs is.
I am not used to not know what is going on in the comicbook universes. I am not comfortable not knowing. Time to seriously beef up my lore.