)
believe it or not, not all female bronys use the segregating pronoun, some mares still call themselves brony for various reasons, chief among them the 'pegasister' moniquir is actualy not that well known
i know at least one mare that refuses to use it for a bit of a silly reason (to me but it maters to her) that being it implies that female bronies can only be pegasi...you can see why this would be a bit...iritating...to some.