It's not a football forum; it's a forum for Brighton fans some, maybe most, of whom have interests outside of the Albion. Consequently the threads on NSC tend to reflect the various other interests of Brighton fans as well as just their shared football one.
HTH
They've been doing it for ages. At least it's not as bad as New Zealand where they play 'gee up' music whilst the match is in progress! (During the last World Cup they kept playing 'Sweet Caroline').
These threads where people try and argue that such-and-such a sport is 'better' than another...