Not a rule, but a suggestion:
If you lose interest in this world, please let me know, I won't guilt trip you about it or anything but it makes it so I don't keep trying to poke you into participation.
You don't have to tell me why, but it would help me if you do so. No time, lost interest, it's not what you thought it would be, the valos make you uncomfortable, etc. that I may adjust either the RP itself or at least its advertisements for future players.