I feel like there was another thread on this subject here at one point. Anyway, I think some people are just way to hung up on labels and terminology, particularly young people. Like, fairly recently I was having this conversation with this 18-19 year old about music, and I mentioned that, among other things, I liked techno. Guy started flying off the handle; apparently, that type of music is called "EDM" now, and it's fandom gets massively bitter when you call it techno. I had no idea, I just like the drumbeats and the synths and stuff.
When I was first getting into this culture in the early 2000s I thought of myself as an "anime fan", on account of how the stuff I liked was typically referred to as "anime". Actually, I think the guy who introduced me to it called it "Japanimation". Then as I got further into it I learned the word "otaku" and started using that because I liked the sound of it. Now if I go around calling myself an otaku I get called a weeaboo. I can't decide if it means that anime and all related subcultures are becoming more or less acceptable within mainstream culture.
Really though I don't think it matters what you call yourself or what others call you, at least it stops mattering once you get past that teenage phase where anything you happen to be interested in becomes your entire personal identity, and you need words and labels to be part of that identity. Social media makes it worse too, I think, since having your internet identity inextricably tied to your IRL identity has pretty much eliminated all the freedom and anonymity this world once offered.