Ok, so lets just look at the definition of vain.<quoted text>
Actually no, this isn't taking the Lord's name in "vein". A vein is a blood vessel that carries blood to the heart. Try "vain".
vain[ vayn ]
excessively proud: excessively proud, especially of personal appearance
unsuccessful: failing to have or unlikely to have the intended or desired result
"a vain attempt to escape"
empty of substance: devoid of substance or meaning
Well it is clear the commandment must have been using the third meaning of the word. So when Silver used the word "Christ" in Christmas, to attack someone in a vulgar way, was that in reference to Jesus or was that part devoid of substance and meaning?
Not sure how you split hairs on sin, so I am just asking. Not saying you are wrong.