Heh on the other hand just last few seasons ago during 2004-2007 Chelsea supporters pops out like mushrooms all of sudden claiming they are true Chelsea fans while claiming the best Chelsea player in history is Frank Lampard/Didier Drogba.

Hmm not only Chelsea, there are many Manchester United fans similiar as well. Alot of them don't know whos who or what happened before, referring Manchester United as Man U, I mean its the same for every team. Especially my sister who claims she supports Manchester United but she only has Ronaldo posters on her wall.

Actually in my generation I supported Manchester United because of my group of football friends during primary school, sad to say I was part of that kinda fan before. But maturity brings passion as you grow older you'll stick to that first team you supported and never look back even if they fail.

Back to the question, I think its ok to switch clubs as long its for all the right reasons. For example, the team playing good football, some football player story that changed your life, etc.

But switching teams for the sake of friends, family, girlfriends, boyfriends, glory is wrong in my opinion.