As a woman, I feel that sometimes it's "safer" for us to pretend to be male or just not mention gender at all. Who wants to open themselves up for flaming about how we're just guys pretending to be female for the attention? Or that if they're female, they obviously can't be technologically intelligent (or intelligent at all)? Or get some crazed whacko try to track us down in real life and harass or hurt us (it happens, albeit rarely)?
~Ladi