The Positive Aspects of Dark Patterns

Harry Bregnell has created a design pattern library for dark patterns. It's the ultimate source to go to find how you can do stuff that tricks people because he highlights all the ones showing you how to do it. But no, no, I think the positive aspects of it enables us to understand the situations where it is a dark part and how maybe discuss the legal aspects? Am I okay using moral there? That we should be doing certain things.