Hi @Christian1. So do I understand it correctly? You have guests that helped themselves to items from your kitchen and accessed the kitchen when they are not allowed to do so?
I took a look at one of your listings, and in the house rules there is nothing indicating that they cannot take glassware/dishes from the kitchen.... it does say "no eating in bedrooms" but that's not clear enough.
It's possible that you had some rude guests, but I think that you can set expectations of guest behaviour with tighter house rules - being very exact about what access they can have, and cannot have.
if you are not allowing access to the kitchen, then I think it's only fair that you make some kind of provision for people who might want a plate and a knife to have a fresh mango, or a glass to drink their purchased drinks out of.
I hope that I understood you correctly.
By the way, when your write in ALL CAPS it means to convey anger, and yelling. Just in case you were not aware of this.