http://en.wikipedia.org/wiki/Cleveland_Browns
Cleveland Browns fans are fiercely loyal. In fact, a 2006 study conducted by Bizjournal
http://www.msnbc.msn.com/id/14686579/ determined that Browns fans are the most loyal fans in the NFL. The study was largely based on fan loyalty during winning and losing seasons, attendance at games, and challenges confronting fans (such as inclement weather or long-term poor form of their team). [2] The study noted that Browns fans filled 99.8% of the seats at Cleveland Browns Stadium during the last seven seasons, despite a combined record of 36 wins and 76 loses over that span. [3]
The most prominent organization of Browns fans is the Worldwide Browns Backers. The organization has approximately 50,000 members and is considered the largest sports-fan organizations in the USA. [4] Browns Backers clubs can be found in every major city in the United States, and in a number of military bases throughout the world, with the largest club being in Phoenix, AZ. In addition, the organization has a sizable foreign presence in places as far away as Egypt, Australia, Japan, and Sri Lanka.