I’m the GM for a group of my friends in a MOTW campaign, and since one of my players is full-on masochist when it comes to character creation, I have introduced a system of quirks called Maladies that help inform how characters act. They’re like moves, but usually offer little to nothing positive; instead, focusing on adding a thematic complication to make playing that character more interesting and varied. Here’s a link to some of them that we’ve managed to come up with!
But take care; some of them are a bit graphic! You’ve been warned!
Interesting ideas