alt Hacker NewsSomeone still has to come up with the A and B to do AB testing. I'm sure that "Yes" "Not now, I hate kittens" gets better metrics in the AB test than "Yes "No," but I find it implausible that the person who came up with the first one wasn't intentionally coercing the user into doing what they want.
That's true for UI, it's not true when you're arbitrarily injecting user feedback into a dynamic system where you do not know how the dominoes will be affected as they fall.