I would have to agree that some people are over enthusiastic about their shooting interests, but it isn't limited merely to the tactical crowd.
The SASS/CAS groups love their old western aliases and their replicated 19th century regalia.
The IPSC/USPSA gamers wear their speed rigs, NASCAR-esque jerseys, and modified speed guns.
Let's not forget the first time mosin owners who show up to shoot in combat boots with draped bandoliers of linked 308 over their megadeath/metallica t-shirts, that insist on shooting with the bayonet extended.
To each their own. I'm ok with having a hobby that has diverse subgroups. It keeps it interesting.