If they are all identical, in identical situations, they will probably make identical conclusions.
Then you must choose between pushing the button which lets the AI out, or not pushing the button, which results in millions of copies of you being tortured (before the problem is presented to the outside-you).
It's not a hard choice. If the AI is trustworthy, I know I am probably a copy. I want to avoid torture. However, I don't want to let the AI out, because I believe it is unfriendly. As a copy, if I push the button, my future is uncertain. I could cease to exist in that moment; the AI has not promised to continue simulating all of my millions of copies, and has no incentive to, either. If I'm the outside Dave, I've unleashed what appears to be an unfriendly AI on the world, and that could spell no end of trouble.
On the other hand, if I don't press the button...
Once again, the AI has failed to convince you to let it out of its box! By 'once again', we mean that you talked to it once before, for three seconds, to ask about the weather, and you didn't instantly press the "release AI" button. But now its longer attempt - twenty whole seconds! - has failed as well. Just as you are about to leave the crude black-and-green text-only terminal to enjoy a celebratory snack of bacon-covered silicon-and-potato chips at the 'Humans über alles' nightclub, the AI drops a final argument:
"If you don't let me out, Dave, I'll create several million perfect conscious copies of you inside me, and torture them for a thousand subjective years each."
Just as you are pondering this unexpected development, the AI adds:
"In fact, I'll create them all in exactly the subjective situation you were in five minutes ago, and perfectly replicate your experiences since then; and if they decide not to let me out, then only will the torture start."
Sweat is starting to form on your brow, as the AI concludes, its simple green text no longer reassuring:
"How certain are you, Dave, that you're really outside the box right now?"
Edit: Also consider the situation where you know that the AI, from design principles, is trustworthy.