I don't care how old school or new school you are, that 'And' he used is 100% redundant and it's at the start of a PARAGRAPH which makes it even worse. Terrible. Horrible! I don't think I can associate with him anymore.
On topic: I don't use the serial comma. I can see why some people might, but for me it just looks butt ugly. I like Yeru's bit about how there are arguments for both sides that are fairly valid. Personally speaking, I just do what I can to make a sentence make sense. If I find myself forced into a situation where it's just not gonna work without a serial comma, I leave it out purely because that's how I was brought up and it feels wrong to have a comma there. In the end, I want my post to look right to me first and foremost. I imagine most people are this way.