How difficult can it be to put a guard in the middle of light's hope chapel? I recently got a warning from a GM for "abusing terrain" when I was fighting there. I think there's better things the GMs could be doing with their time, for example it took them 2 days to answer my report of a player botting. Now I unfortunately don't have a list of all the places in vanilla where there were and weren't guards, so idk if it's allowed to attack people for example in the Un'goro quest hub or is that "abusing terrain" again too. Same with Ratchet.
Instead of adding more invisible ghosts to dire maul, perhaps you could find the time to put literally a single guard in LHC and wherever else you don't want people fighting rather than giving warnings left and right.