I think this is a very important point Kaitlyn. I have noticed a lot of people who frequent the crossdressing forum, or people who label themselves as crossdressers will refer to themselves as not JUST male and get offended if someone implies otherwise. They feel that there is actually a female component to their identity. They most likely identify as a transgendered individual or even a transexual, but are hiding from it. They say there is more to crossdressing than their cloths... which is usually an indication that they are not a crossdresser or not JUST a crossdresser.
When I think of a MTF crossdresser, I think of the classic definition: a MAN who wears women's cloths. Someone who happily identifies 100% as male, but just likes to wear women's cloths for whatever reason.
In my mind, if someone identifies partially or wholly as a woman, then they are not a crossdresser because they are wearing the cloths of the gender that they identify as. They are not JUST a man, they are somewhere between and including male and female genders. I believe there are more transgendered individuals than we realize... but most of them either don't understand who they are or are repressing who they are.
I believe this because I've been there. I crossdressed all my life but somehow never accepted that I was a crossdresser. Then I assumed I was JUST a crossdresser because while I finally accepted one part of my femininity, I still repressed 99.9% of it. I joined this forum as a crossdresser and would spend my time in the crossdressing forums. But as I continued exploring and accepting who I really am, I realized that I am clearly not a crossdresser at all... I didn't really identify with most of the crossdressers. I wasn't even somewhere in between... I was 100% not a dude.