It's called using logic. Just don't cuss and don't hack/cheat don't do idiotic things. Literally that's it. There doesn't need to be a specific guideline, that's the awesome part of Graal that there is in actuality a lot of freedom. Some people abuse these things though. I remember when you could do anything on Graal Classic. No cuss filter no nothing. But look at us now, were slowly getting caged in, and this is fault of all the immature people who can't handle the responsibility of cussing and just playing the game like a normal person.