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.
In 2011, due to a downturn in the airline industry, American Airlines' parent company AMR Corporation filed for bankruptcy protection. In 2013, American Airlines merged with US Airways but kept the American Airlines name, as it was the better recognized brand internationally; the combination of the two airlines resulted in the creation of the largest airline in the United States, and ultimately the world.
In the end, American let its employees decide the new livery's fate. On an internal website for employees, American posted two options, one the new livery and one a modified version of the old livery. All of the American Airlines Group employees (including US Airways and other affiliates) were able to vote. American ultimately decided to keep the new look. Parker announced that American would keep a US Airways heritage aircraft in the fleet, with plans to add a heritage TWA aircraft and a heritage American plane with the old livery.
Guests can search for lodging using filters such as lodging type, dates, location, and price. Before booking, users must provide personal and payment information. Some hosts also require a scan of a government-issued identification before accepting a reservation. The company also provides travel guides, entitled "Neighborhoods", which provide details about staying in specific neighborhoods in various major cities.