@Diana1791 Whether AirBnB collects taxes for you depends on whether or not they have an agreement with the local tax agency. VRBO will have a separate agreement.
Go to your local tax office and ask about Short Term Rental Occupancy (Lodging) taxes. It appears from my cursory online search that the potential taxes in Kent are address specific and there are forms involved.
What other hosts are doing is not a good measure of what taxes are due. Many hosts begin renting with no consideration as to the taxes applicable to property rentals. If they do know what percentage to charge for taxes, and AirBnB does not do it for them, they may simply increase their nightly rate, appearing to be charging no taxes.