I refer of course to the serial/Oxford comma, which is the difference between “A, B, and C” and “A, B and C.” Apparently, even an Oxford style guide has dropped it from usage, except where absolutely required for clarity.
Some lines, borders, or boundaries must not be crossed. This is one of them. This decision must be reviled, scorned, and disregarded, and I will not be satisfied until the style manual in question has been shredded, burned, and scattered across the nearest pond, lake, or ocean. That’s just how I roll.
H/T: Tony Shreck, via Facebook.