Goverment crackdown maybe? Or maybe the physical ability to build machines works, but there becomes an economic bottleneck where a more powerful AI stops being worth the expended resources, diminishing returns.

Want to thank you for helping combat dehumanization.

We absolutely want them to take abuse with a smile on their face; Why on earth would we want to create an intelligence we can't abuse? We have intelligences we can't abuse all over; in the form of each other. We are not lacking for mind-power, we lack submissive-mind-power. I'm not saying it's right, but it's what I always assumed was the point for the people making AI (Edit; I'm not saying it's wrong either, I'm neither skilled enough at programming or philosophy to grapple that issue)

If somebody wants to enter the Pleasure Cube, then I say let them. I wont, most people I dont think would, but to those who want it I see no issue. Even if the entire human race did, so what? Hedonism is only a problem when its causing trouble for other people, otherwise I say have at it.

And the problem with that machine is...?