Airbnb features a review system in which guests and hosts can rate each other after a stay. Hosts and guests are unable to see reviews until both have submitted a review or until the window to review has closed, a system which aims to improve accuracy and objectivity by removing fears that users will receive a negative review in retaliation if they write one. However, the truthfulness and impartiality of reviews may be adversely affected by concerns of future stays because prospective hosts may refuse to host a user who generally leaves negative reviews. In addition, the company's policy requires users to forego anonymity, which may also detract from users' willingness to leave negative reviews. These factors may damage the objectivity of the review system.
New York–JFK – The tenth-largest hub for American in terms of number of flights, the ninth-largest in number of destinations and American's secondary East Coast hub for international flights. About 7 million passengers fly through JFK on American every year, or about 19,000 people per day. American has about 12% of the market share at JFK, making it the third-largest carrier at the airport behind Delta and JetBlue. Since 2017, American has been reducing its international operations at JFK, opting to expand its Philadelphia hub instead. JFK also serves as a major connecting point for other Oneworld carriers.
Some cities have restrictions on subletting for a short period of time. Airbnb has published a list of regulations and requirements for cities in the United States. In some cities, collection of a transient occupancy tax by Airbnb is required. In many cities, hosts must register with the government and obtain a permit or license. Landlords or community associations may have restrictions on short-term sublets.