Having been in the hospitality industry for 25 years and worked in all hotel/resort departments in the early years as a management trainee, I'd like to give you some advice with regard to the ranking system for guests.
I, like other hosts, find that some guests do things like use every towel in the clean laundry, wash clothes and hang in the room and other such things that one cannot really articulate with the star system that is currently in place.
I would recommend that there be a way to let other hosts know of these kinds of guests who exhibit slovenly or wasteful behaviors so that the hosts can decide if these types of things are acceptable to them or not.
Just a suggestion to help us, hosts, out.