ALSO, IMPORTANT NOTE: Everyone should be able to display their favorite badge in their profile, with it appearing next to their username when they post.
@TheHubCityQuestion, this sounds a bit like flair to me, would you call that a different category? More like titles in a court, rather than your badge emblazoned?
A 52 badge for checking out comics starring a checklist of Adam Strange, Animal Man, Batwoman, Black Adam, Booster Gold, Elongated Man, Lex Luthor, Will Magnus, Bruno Manheim, Renee Montoya, The Question, Starfire, and Steel.
I really love your ambush bug badge idea I was trying to think of similar ones. I think if badges are going to be a thing especially if they can be displayed then it would be excellent for some of them to be more difficult then others to obtain and also very fun too if possible to add a meta game to them.
Like for instance:
Joker Badge: Getting a mod to laugh
Riddler Badge: Solve a series of riddles that are given out by the mods
Then when the Batman storyline War of Jokes and Riddles is released on DCU hold a competition where people equip the badge of the one they are on the side of and whichever team wins then merch of that character goes on discount for a short period of time.