I understand that it is a pretty-ok image for playing with image processing stuff, but do you not think that using literal porn might breed a bad atmosphere in a professional environment?

I'm definitely guilty of using the image, I still occasionally use it on my home computer if I'm playing with image processing stuff, but I purposefully do not use it for anything that any other human is likely to see, since I don't want to be the reason to make someone feel unwelcome in the tech space.