Actually, you have your terminology confused. A "fair weather fan" is a person who remains a fan of a team....but mainly only in good times...when they are winning, but they disappear when they are losing...but still, they essentially stay loyal to their team.
What you are talking about is being a Front Runner. Or as we call them: FRAKs. FrontRunnerAssKissers. These are the fans whose allegiance is essentially for sale. They will root for a team that is good and winning, but if that team is bad, they will go and become a fan of a different team....that, of course, is winning.
No one here really wants you to be that. That kind of person is lower than a snakes butt. We see plenty of those types....mostly fans of the Steelers, (but some other teams have been loaded with FRAK fans....Cowboys, Yankees, Celtics, Lakers etc.).
No, we don't want you to be a FRAK....ergo....you should change your avatar to show your true colors.
Fair enough! Haven't heard FRAK before, learn something new every day. Seems like Bandwaggoning as I call it.