They aren't 'just another football club'.Whats the obsession with St Pauli?
As per Wiki:-
"Kult" phenomenon
It was in the mid-1980s that St. Pauli's transition from a traditional club into a "Kult" club began. The club was also able to turn the location of its ground in the dock area part of town, near Hamburg's famous Reeperbahn—centre of the city's night life and its red-light district—to its advantage. An alternative fan scene emerged, built around left-leaning politics and the "event" and party atmosphere of the club's matches. Supporters adopted the skull and crossbones as their own unofficial emblem. St. Pauli became the first team in Germany to officially ban right-wing nationalist activities and displays in its stadium in an era when fascist-inspired football hooliganism threatened the game across Europe.[citation needed] In 1981, the team was averaging crowds of only 1,600 spectators: by the late 1990s they were frequently selling out their entire 20,000-capacity ground.[citation needed]
In the early 1990s, the media in Germany started to work on the Kult-image of the club, focusing on the punk part of the fan-base in TV broadcasts of the matches. By this time, the media also started to establish nicknames like "Freibeuter der Liga" (buccaneers of the league) as well as das Freudenhaus der Liga ("Brothel of the League" but Freudenhaus also literally means "House of Fun").
St. Pauli moved in and out of the Bundesliga over the course of the next dozen years: The club were narrowly relegated to the Oberliga in the 1984-85 season, but won the 1985-86 championship and returned to 2. Bundesliga. Two increasingly strong years followed, resulting in promotion and three seasons in 1. Bundesliga, during 1988-91. Four seasons followed in 2. Bundesliga, and then another two in 1. Bundesliga 1995-97, before returning to 2. Bundesliga.
Not to mention the fact that now back in the big time, that have a hot dog train and beer dispensing chairs in their 1901 club.