They put all that in every fucking possible ocasion. You know what I once seen on some forum?
In registration, question 'Sex' and had 3 options: Male/Female/Undecided
To be politically correct, ya?
As far as I know, that's not there for political correctness, it is just allowing you not to declare your sex.
I know it is difficult for females, especially on gaming forums, not to be nagged by horny 10 year olds just because they are a girl.
In fact, on GTA:Online I changed my main character from female to male when upgrading to PC because of all the idiots who would harass me, whether sexually harassing via messaging or just chasing me down saying "omg kill the gurl"
