Probably 98% of people who put female as their gender here aren't female. Some people just put their gender to female just because it's there. If you could identify as an attack helicopter I'm sure that would be chosen just as much if not more. Claiming or pretending to be female is also often a tactic scammers use because sadly a lot of men let their guard down when they think they're talking to a woman. Who was that guy that disappear because of Alia? Nullius?
I think there's probably more women here these days than they used to be though, especially from developing countries, as signature campaigns are an easy thing someone can do from home.
No exact number, But I can say there are here.
Base on my personal experience all of the online community that I joined has female users
I talk to them in person and gives their social media and came to know each other.
Don't you Think Lauda is a female or its just Her/His name?
This is another example of how easy it is to fool someone here (or online in general). Often all you need is a female-sounding name and people will assume you're one. It's always blatantly obvious to me when someone comes here and they're trying way too hard to let everyone know they're a female and I can spot it a mile off and what they're trying to do (just to clarify: that's not what I'm claiming lauda is doing, but rather how everyone assumes he's a female merely because of the name).