Hi @Ahmed0
Im respectfully must disagree with you that air bnb allows people to cheat/encourages people to cheat on the amount of guests allowed.
YOU as the host must take full responsibility by providing an extremely crystal clear description of your accommodation.
I got stung last year by my Chinese guests who from 2 people morphed into 5 people!
My listing now clearly states MAXIMUM 2 adults only in king-size bedroom.
MAXIMUM of 2 adults only in the double bedroom.
MAXIMUM of 4 adults and NO GUESTS, infants or children, allowed at any one time in our family home.
You my friend must really tighten up your description and your house rules to prevent this cheating by cheapskate guests.
Further more May I respectfully suggest that your photos which people tend to look at first after price, has a clear sentence stating Bedroom 1 MAXIMUM 2 adults and so on.
One of your photos should be of the entire outside frontage of your property which clearly states MAXIMUM number of adults ( no friends or guests) is xyz number of adults.
For my bedroom the price is set at the maximum price of £65 for 2 adults, and It is still £65 for a single adult.
If you are in the market place at the low cheap end of the market these are the cheapskate guests you will attract with their cheapskate values.
Im afraid the responsibility lies with you as the host to be fully accountable for your property!