Practice and Ethics in Climbing - Traffic Light system

In sport climbing, compared to most other sports, there are few written rules and rare use of referees. Instead, the climbing community creates and circulates their own Practice & Ethics. Beginners sometimes struggle to understand what "normal" behaviour is, what is allowed and what not. Over time, the general procedure has been modified and in different subcultures different ethics apply. Here is what 8a thinks about Practice and Ethics in Climbing.