It’s time to stop worrying about judging the cred of others and start simply welcoming newcomers to the club. What club? Any club!
It’s okay to be into things. If you have a vast repository of knowledge about a thing, good for you! You know a ton of stuff about something. Enjoy that knowledge. Or hey, maybe teach some of it to others. Only if you feel like it. Totally your call.
It’s also okay to want to learn about new things, whatever your motivations. I’m reminded of this scene from Freaks & Geeks in which James Franco’s cool-dude burnout Daniel is forced to hang out with the younger geeks in the A/V club. One thing leads to another, and Daniel winds up playing Dungeons & Dragons with the geeks… and loving it. What a lovely fictional example that is.
There’s no harm in leaving a spot at your table for newcomers of either gender. Don’t judge them, don’t tell them they’re phony or that they don’t meet your required enthusiasm quota. Who knows? Could be you’ll wind up getting to play Dungeons & Dragons with James Franco. Or, you know, the lady version of James Franco.