Nerds all share a unified experience of being socially ostracized from the rest of other so-called "normal" societal groups. The reasons may vary (not being good at sports, liking a certain sci-fi/fantasy TV show, etc), but the fact that we all were picked upon and marginalized during our most formable years is a major part of the nerd/geek identity. But in recent years nerd culture stopped being it's own niche thing, and has started to seep into mainstream culture. Making nerd culture more accessible has naturally brought with it a new group of people and fans into our sphere... and not everyone is happy about this development.
Personally I think it's great that nerd culture has become so widely accepted lately. I can freely have a discussion about my favorite DC or Marvel superheros in public without getting looks of disgust or incredulity because EVERYONE loves Batman and The Avengers. And if I make an obscure joke about Doctor Who, there's a LOT of people who will get it now. But like I said, with any sort of widening of the demographic there's usually a backlash that comes from the already existing demographic that doesn't want to change or accept new people into their groups.
I noticed this a lot after reading the polarizing reviews for Star Trek: Into Darkness. Now, the latest Star Trek film is very much an action oriented adventure rather than a thought provoking sci-fi odyssey. To many in the fandom this is sacrilegious because "Star Trek has always had a more philosophical side to it." I started to see people accusing those who liked the new Star Trek movie as not being fans of Star Trek and demanding anyone who liked it to "prove" they liked Star Trek by forcing them to list off how many movies or TV show episodes they've seen. Like that sort of quantifying list would somehow give or take the credibility of people who legitimately enjoyed a movie (You've seen at least 29 episodes? I'm sorry but you need to have seen 30 episodes or more to qualify as being a fan!)
This is backwards and depressing to me. I don't personally care if you liked the new Star Trek or not. If someone is introduced to this franchise and series through the new movie and REMAINS a fan, then that's a win-win in my books. EVERYONE who is a fan of something now, started out with no experience or understanding of what they were getting into. Don't marginalize them for not being "up to snuff" with your obviously larger experiences and knowledge of the franchise simply because they're "new."
And it's not just Star Trek, this is an issue that permeates ALL of geek culture. This obsessive need to test new fans and criticize them for not being "as into" the series as you and your friends are is everywhere! Remember a while back the whole Geek-Girl issue? It's the same thing. Nerds seeing women who liked nerdy things, calling them out and demanding these women answer tests and quizzes to "prove" their geek creed. Fucking sick.
Even if they aren't "as into" the series as you are I still don't understand how that negatively affects your life. Someone being a fan but not as big of as fan as you shouldn't keep you awake at night or anger you into fits of rage. The world is varied and full of diversity, stop trying to limit it by decrying that only a certain set of people with enough XP are allowed to enjoy ____ fandom.
The important thing shouldn't be HOW a fan gets into a fandom, but rather the simple fact that they ARE into a fandom. It should be a welcoming thing to bring more people into your niches and let them explore and understand the wonderful things you enjoy on a daily basis. If you can't handle the idea of someone you don't have to deal with personally enjoying your fandom... then there's something seriously wrong with you and you need to grow up.
Stop testing new fans to prove they're "worthy" enough to join your fandom. Open the doors and embrace them with welcoming arms. Because the alternative is stagnating isolation and a growing sense of depression and irrelevancy.