I think having spar and tower moderators would really help this disconnect between GPs and players when it comes to these sort of issues. Someone with absolutely minimal and specialized powers. Like boot from spar, or a ban from the building in question if necessary. That way all of the stupid small stuff like this could be taken care of, while GPs take care of more pressing matters. I think a building ban would be more effective against these types of people (at least for sparring since making a new account would force them to wait 24 hours)