Oh God no. First we had all the foreign debates. Then Global Warming. Now we have a plague of down voters! Gimme your best shot!

I vote for a giant middle finger.

Underneath the sign could say "Not your f'n business"

what? i think people could mistake it for on/off switch... lol :D

We do have male and female geeks - could be very confusing, plus we don;t want to segregate the geeks. :)

What about nerds, jocks, chavs, slags, emo's, goths, hipsters, etc?

The symbols for man and woman date back far into antiquity. They were alchemical and astrological in bygone centuries, representing iron and copper, respectively, and Mars and Venus, respectively, respectively.