I don't really have time to answer the questions. xD
I'm a girl (14) and I call myself a brony. Some other girls who are fans of the show that I'm RL friends with say that brony, just the term, is used mostly for guys and they call themselves "pegasisters". I've personally found the name a big more clumsy and not as cool sounding as brony, and also find it a bit more feminine (I'm a "nerdy", tomboyish sort of girl) so that's why I use the word brony to describe myself as a fan of MLP. It's not that I don't like pegaisister, just that. I don't like the term to describe myself. *shrug*