I find the preceding all very interesting, but why is there no discussion on the merits (or otherwise) of the Oxford Comma?
I think it's so unfair that this humble yet important grammatical icon is relegated to obscurity in these web forums.
In fact I'm going to start an entire thread dedicated to the Oxford Comma. It will be flooded with responses!
And then you'll all see just how important and indispensable it is!
So there.