I think the umbrella rule is a good idea,
but it should be extended at an soft way, more like a guideline and not as hard rules.
(So GMs will still have space to work and players have an idea how to behave onself.)
And inside the guideline should be "gray zone problems" added and made be clear, if they trigger oner or more of these:
- they often apper
(If the guidline is clear the GMs should solfe es with less stress and worktime.)
- involve many player
(The problem could be grow fast and makes a lot of trouble, maybe involve other players too than.)
- making a toxic mood/spirit
(Ever player with an taxic mood could be a player leaving the game, thats really bad for the game.)
(As special note: The players are leaving are mostly not the player that start toxic actions, but they countinue with it ....)
Any added entry should have an generell example and the reasons/design choises why it is a bad idea to do this.
With these the players old or new can see the way why they exists and it could be talked in other threads about it,
this cant be happen if nobody know why it it a bad idea.
(Maybe a forum section with one thread for any guidline?)
Not every players has the same ethics and can understand without a reason why a guidline was been made.
In an other point GMs and his assistends could say: "Hey what you are make is not good, you can see an example in the guildine why it is and can we now talk about a solution.".
And i think Mclavin is right, the most problems accour becouse PvE has player limitations that PvP dont have,
but just for the PvE play itself is is good have these limitations.
The only problem with it is that the game/GMs needs to solve the problems that come with them.
Not sure if something exists becouse im more rare at forum.
It could be helpfull to have something similar for often ask questions.
Like an FAQ about design choises like : "Why cant be an PvE Kingdom created?".
Sry for all the gramma and syntax fails ...., plz ask if something is not clear.