if this wasn't an intentional PR stunt
I assign very low probability to MSoft wanting a to release a Nazi AI as a PR stunt, or for any other purpose.
All publicity is good... even a Nazi AI? I mean, its obvious that they didn't intentionally make it a Nazi. Maybe one of the engineers wanted to draw attention to AI risk?
http://www.wired.com/2016/03/fault-microsofts-teen-ai-turned-jerk/
Could this be a lesson for future AIs? The AI control problem?
[future AIs may be shutdown, and matyred..]