I find myself acting more in-character the more I play, and one thing I used to do was just leave posts up OOCly out of respect for the poster. But, I had a heart-to-heart with my character and realized I was doing her an injustice by letting the flyers stay, even when she objected to them.
So, I agree that in-game action is the best course here. Though, in once sense, this could be considered an in-character act. Sometimes when people do not like something, they make efforts to enact rules to outlaw the possibility of it. And that is how you come up with law books so large as to be completely impossible for any citizen of the country to know them all, and yet one of the laws is "ignorance of the law is no excuse."
O.o