There are plenty of women who do just that - hide their gender on HN or downplay it. That approach fails to change the social dynamic and, in fact, helps keep it entrenched.
Judging by your comments (http://news.ycombinator.com/threads?id=Mz - I just skimmed through, didn't read every single one) - you specifically seem to talk a lot about "women in tech", "being a woman", "social issues" and non-technical stuff in general - I'd say you actually bring that fate of being treated "as a woman" on yourself: you won't get harsh comments threading these waters.
BUT judging by the responses your comments get, I'd say it's actually a cognitive bias instead of a fact. The comments don't seem any "nicer" than the usual response I read around here usually...
Also I believe the HN culture of "be nice" is being discounted here. As part of that culture most on HN are generally more polite, than much of the rest of the wild wild web. It can not be excluded from the discussion or else it becomes the elephant in the room.
I think you have missed something: I think I initially got treated "like a girl" but don't much get treated that way anymore. This piece is my thoughts on how to consciously make that happen if any other woman is interested in trying it. I'm pretty happy with how people here talk to me.
But thanks for commenting.