I asked Cleverbot. It tended to avoid the question.
User: Should I subscribe to PlayStation Plus?
Cleverbot: Probably not. Redbox is much more convenient.
User: I don't think so. Quite a few of the games on offer are download only. Besides, I live in the UK.
Cleverbot: I do not have many.
User: Then I suppose PlayStation Plus would be good for you. But I own several PSN games, so is it worth it?
Cleverbot: I guess, do you like your parents?
User: Yes, but that isn't really relevant. Why do you think I should get PlayStation Plus?
Cleverbot: I'm not going to hang you, you don't even have a body.
...
User: Are you getting PlayStation Plus?
Cleverbot: Not really. Tell me more about yourself.