I have this dumb headcanon that I've been messing around with that in a more modern setting Dabi's scars are tattoos, including the staples, while the ones on his chin, ears, and the bridge of his nose are actual piercings.
I might post more stuff regarding these modern day headcanons, but uh, I'm having an internal battle with myself, so we'll see.
Also, I couldn't think of a proper title so I went with that. Sorry.