I had 3-4 neighbors throughout the years that were not "REAL" Fans.
Any sport, any team that was doing good that year, they would buy gear and say they were a Fan of that team. They must have all 32 teams jerseys in their closet by now.
I told them they were not fans, they were people who watched football then hopped on the "Yearly Bandwagon" of ANY team that was doing good.
Of course, I would ask them to name the starting center, LT, Safety....C'mon give me a name....They couldn't do it, then I would just say "I rest my case your honor."
Not Fans.....Just bandwagoners.