I've never been. Just looked at the favicon and thought it would have been better if they used a XOR instead of a NAND, as their slogan is "We can't be both rig

I've never been. Just looked at the favicon and thought it would have been better if they used a XOR instead of a NAND, as their slogan is "We can't be both right". Then I realized I had neglected the case where both can be wrong. NAND seems appropriate, indeed.