No, it's not what some consider his impending conversion to the dark side, rather the fact that he used his vast pulpit to post this link.

I happen to be pro-choice, and I'm nearly always a fan of mocking in-your-face religious conservatives of any stripe, but the damn thing just wasn't funny. It wore out its welcome within the first 90 seconds, and the pacing and animation were weak, very weak. Don't sell out your sense of humor or taste in Flash animation for a personal meme, Andrew; that way lies madness.

UPDATE: The ad was created by "Free Range Graphics." Their client list is a hoot.