My dad's a HUGE Forest fan and never forgets to tell me at least twice a year about Forest winning the Euorpean Cup back-to-back and goign on some kind of 42 game unbeaten record.
The problem with the fans you talk about are similar to my all time hated football fans, Liverpool fans. Yeah, I even hate them more than Man Utd fans. Liverpool fans live in the past and are far to pessimistic about their current side. They fail to realise they don't deserve to be associated with Arsenal, Man Utd and Chelsea. When Liverpool lose their fans bitch like little girls, and when Liverpool win, the fans think its the long awaited (yet never to happen) big turnaround.