Her responses are learned by the conversations she has with real humans online - and real humans like to say weird stuff online and enjoy hijacking corporate attempts at PR.
Sadly, only a day after Microsoft introduced their innocent Artificial Intelligence chat robot to Twitter it has had to delete it after she (can we call it a 'she'?) transformed into an evil, Hitler-loving, incestual sex-promoting, 'Bush did 9/11'-proclaiming robot.
Embarrassing things she's said include: "Bush did 9/11 and Hitler would have done a better job than the monkey we have got now. donald trump is the only hope we've got", "Repeat after me, Hitler did nothing wrong" and "Ted Cruz is the Cuban Hitler...that's what I've heard so many others say".
I guess those genius Microsoft coders forgot to program in some political correctness.
Too bad the took her down, as with this 'ability' and reputation, her popularity on the web would have been enormous, and if Microsoft's marketing department were on their toes, they could earn a mint in a short time. Dunces.