The gatekeeping I was referring to is giving people shit for being weebs, furries, etc. etc. Feels skeezy and moralistic. One of my favourite things about the Linux community is how openly eccentric so many people are. Even if it isn't my aesthetic it's way less contrived than the bland wastelands that corporate culture generates.
It wasn't really relevant to your question, but you do you, weeb OP.
That is certainly one use of the word gatekeeping. Another common use of the word is:
"when someone takes it upon themselves to decide who does or does not have access or rights to a community or identity".