Option to disable offline raiding.
I've been playing multiplayer for 2 years now and no matter what server you'll join, the same exact server rule will pop up. "No offline raiding"(no damaging grids inside the claimed area, when the owner is offline). I dont think you can find a server that doesnt have that rule. The thing is, admins cant always be present and monitor their servers, so a lot of ppl like to break that rule.
I think it would be a good idea to have checkbox in world options to disable damage to grids inside of active claim if the owner of the claim is offline. Every ME server have rules against offline raiding, so why not have this in vanilla game already. I mean, this is how ME community plays this game and it seems reasonable to me.