Also the oil paint doesn't have its own memory banks that someone could accuse of being trained on c---- p---. But still, I also wonder if Microsoft's liability would be less if it weren't screening images.
I wonder why nobody is asking where do the images used to produce output come from? Have their creators been asked for permission to use them? I'm guessing they come from the Bing data lake of images scraped off the internet. Better add Bing robot to your robots.txt.