Sadly, some people take it way too seriously. I had something along similar lines of fans taking things too seriously when I went to a WWE event with my AJ Styles shirt.
WWE Fan: You're in the wrong place to wear that TNA shirt.
Me: Oh, is that because WWE doesn't have wrestling anymore?
WWE Fan: No, WWE IS wrestling. Everything else is just a rip off since WWE started it.
Me: That's cool... You do know what the NWA is, right?
WWE Fan: Probably some stupid Indy fed you watch since you're wearing that Indy fed shirt.
He got pretty embarrassed when his friends explained to him what the NWA was and my group of friends got a good laugh out of it. His friends were pretty cool and we drank a few beers with them at a local bar after the event, but man that one guy was just an idiot.