The definition of the term used to describe a single person has been warped so many times over I honestly don't know how to correctly define one anymore. It's usually centered around parameters, for example "all you have to do is like the show and you're a brony" or "if you participate with the fandom you're a brony" and other things like that.
Something about that just seems wrong to me though. Using particular multiple variables to define a person/group, but then someone else will say "you don't have to like the show to be a brony" or "you don't have to participate with the fandom to be a brony." Rather confusing, then people will say "You don't have to be a brony to like the show", "you don't have to be a brony to participate with the fandom."
What I do know is it's not just a label. There is more to it than that, not in the terms of pride and that sort, but other things. Perhaps I'll think about this for a spell, or perhaps I'm not thinking clearly as I'm just waking up and am overthinking it.