It's weird you got downvoted; you're correct, that chat bot was spewing hate speech at full blast, it was on the news everywhere. (For the uninformed: it didn't get unplugged for being "PR-unfriendly", it got unplugged because nearly every response turned into racism and misogyny in a matter of hours)

https://en.wikipedia.org/wiki/Tay_(chatbot)#Initial_release

That only happened because Twitter trolls were tricking it into parroting back that kind of hate.