Idk man, you do have to know subgenres on some level even if it's just vibes based. I have to know enough to communicate that I like Trance and Progressive but fucking hate Drums and Bass(liquid is okay though I guess) at least.
This is the lowest level you can go while still being pleasant to casually chat to. Um akschually it's not DnB it's Jungle is when it starts to become a little pretentious unless you're talking about the actual history/scene/sociology of the genre