I think basically stick to maple related in this fourm, like mapleroyals, and the other is for anything really. i dont think there really is any rules, besides the regular ones that are for ingame, some can apply for out of it im guessing.
Use common sense and don't be a dumbass, that is my advice. If you need rules to moderate yourself on a forum of your peers then that only says something about yourself. If you think someone may potentially be breaking a rule, private message a staff member. Being said, I would not object to having a set of rules.
^ Basically. But I'll write some official rules... here goes: Forum Rules: 1) Don't be a dick. 2) ^ 3) See number 1.