By the way, gender is not taken into account. You, as a male user, can choose another male user... it doesn't matter because we evaluate forum accounts, not gender.
This is homosexualism 
. You can refer to it as who do you like most. It should not be about who to marry. Just like you have said, no one knows who. You do not know if I am a man or a women. You do not even know if I am a bisexual.