I, too, use gender neutral language a lot.
But as with every discussion of social interaction and inequality, this is not about GCers as individuals. There are 7 billion people in the world, most of whom use gender specific and heterocentric language.
I have also had people in professional and personal environments get impatient with me and tell me that I need to announce whether I am talking romantically about a man or a woman instead of saying "partner" and "significant other." I was told that it makes people uncomfortable if they can't identify me as a heterosexual woman.