Be aware of Air Bnb

Their business practice is *******. When a client and host agree to alter a long term booking date, their system change the number of days but also change the rate per day to keep the anount paid the same. That is so that they can rent out the same room for the same period that was already paid for. That is ***** and I am going to report them. I wonder how much money they make world wide annually with this ********** practice???