I listen to a lot of "classical". People will generally dump centuries of music into that label, or into the slightly better "baroque/classical/romantic/etc" bins.
But composers often have phases where their music can change considerably. Even with in a work (say, Dvorak's 9th symphony) individual movements can be very different. Yet I don't see classical music enthusiasts trying to place every single work into tiny bins (or maybe they do?). They just enjoy them.
I've come across plenty of classical music that I enjoy but I don't know where to begin to find more of it.
If I am being uncharitable, some people just want to differentiate to feel special. Elitism in genres is nothing new either, rock and jazz have their own blend of genre snobbery and I am sure even Classical had people trying to look down on others from adjascent, equal height high horses.
If you can't differentiate between neurofunk and liquid, you're probably not a big dnb fan.
That doesn't mean you can't enjoy it, but enjoying something and being a fan of something can be quite distinct things.
I'll be honest with you, I thought this was satire before I read the next line.
It may just come down to whether one uses the watered down meaning of “fan” or the original.
I also reckon that being a fan connotes something different from merely enjoying the sound when you happen to come across it. But I guess there's room for disagreement there.
When I tell this to normal people they think I'm a superfan, but I am not even in the same conversation as actual train fans. I doubt I could even hold a conversation about trains with a train fan.
It is the same for music, and I have the benefit of having been both a superfan and now later just a regular person who loves the music. I have an in depth love for the music, and no one can take that from my heart. But I don't give a lick about genres anymore.
Plenty of people are able to enjoy music without getting caught up in nomenclature. The idea that those people aren't real fans always feels very snobbish.