I mean, yes, every person is unique and valuable as a human being and all that, but not to the Internet, and certainly not just by virtue of being female. One of the first forums I joined was a gaming forum. OK, it was a Final Fantasy forum. I was just looking for some tips on beating Emerald Weapon, OK? That's my story and I'm sticking to it.
I ended up using the Lucky 7s trick. If you care, you probably know what it is already.
Anyway, I stuck around, and ended up participating in the forum at large. As I got used to it, I decided to let everyone know I was a girl, because I thought people would find this very surprising, as they were all nerdy gamer guys.
Because I was too subtle to come out and say, "HI EVERYONE I AM A GIRL," I went with something coy like, "I'm applying to schools, oh by the way, this one might give me a scholarship for being a girl," or "What do you think of my new haircut (insert picture)?" or maybe, "Pardon the typos, my boobs keep bouncing off the keyboard." I don't remember exactly, it was a while ago.
"Hello fellow car forum members, here's a picture of the Nissan 350Z I just bought. Isn't it a great car?"