Unfortunately, I think that you misunderstand the system. Given the trillions of different gender identities, we have adopted a coding system in which each gender identity is assigned a 64-bit number. For example, and only for illustration (I do not wish to presume your wingspan), Apache-attack-helicopter-gendered people would need to input the easy-to-remember code 0x9b68d151aeefa34f. In order to maintain compatibility with legacy systems, however, this is done by submitting the form multiple times with different genders. For example, in this case you would input Male Female Female Male Male Female Male Male Female Male Male Female Male Female Female Female Male Male Female Male Female Female Female Male Female Male Female Male Female Female Female Male Male Female Male Female Male Male Male Female Male Male Male Female Male Male Male Male Male Female Male Female Female Female Male Male Female Male Female Female Male Male Male Male. Simple! Now, it may seem discriminatory to assign Male 1 and Female 0, but not to worry! The coding is designed so that you can also input the inverse and get the same result. And to avoid left-handed bias, you can also enter it in opposite order. In fact, you can just put in whatever sequence of entries you want and the result will be the same.

So you see, bitcointalk.org is in fact the most progressive website ever, and I am ashamed to live in a world in which this system isn't yet codified into law.