Anarchist cares much about board game rules.

To me it makes perfect sense that people who reject the violent, society-wide impositions of laws/rules without regard for "the consent of the governed" would also be people who cared A LOT about the establishment and maintenance of rules of mutual consent governing the associations they voluntarily make.

Anarchism doesn't mean chaos, it means consent. And if people are violating the rules they consented to follow (and by extension the conditions under which other people consented to associate with them), that's a real problem.

But I also see why on the surface this kind of behaviour seems inconsistent or even hypocritical to normies, so it's just fun.