I don't know about all girl gamers, but I receive comments all the time about how I do not represent the Girl Gamer population correctly. They base this comment on the fact that I prefer to play FPS or Racing games rather than the Imagine, Petz series, or other games generated to push towards girls.
Since when did being a "Girl Gamer" mean you have to only play certain games. I see many people play different genres all the time. No, you won't see me discuss Imagine Fashion Designer or other games on that genre. But think about it. Those games are geared more towards the younger generation of girls. Girls between the ages of 7-15 where they want to learn about becoming a Fashion Designer, or whatever Imagine game they are interested in. The games in each of those series give an example of what kinds of things you can do. Now I can't speak for all the gamer girls in the world, but I for one know what I want to do and what I like to play. So when I write, I write about the games that interest me.
All my girlfriends that are gamers love the same games I do. Some play games I don't. But I don't bash them for it. All girls are different and like different things. So I don't expect to be considered the example of the whole Girl Gamer population. But I play video games, and I'm a girl. So if that doesn't make me a Girl Gamer, than I don't know what does. In my eyes, I'm a Girl Gamer and proud of it.