To many climbers, the title of this post sounds contradictory. But 8a.nu has an article on ethics and the practices of sport climbing.
In sport climbing, there are no written rules or judges like in all other sports. Instead, the climbing community creates and circulates the Practice & Ethics. Beginners are struggling to understand what is normal behavior and why it’s like this. Over time, the procedures have been modified and in different subcultures different ethics apply.
I think I see the European bias of the site in how it breaks down sport climbing ethics using soccer nomenclature: yellow and red cards.