Apple's pitch is mostly a hunch.
I don’t think you need to worry about how Apple is testing the in-app purchase. If your application has no available purchases; but it still works, then I think that everything is in order.
In terms of “creating your users,” it would be wise to be able to buy at least some In-App content on the day it’s live, but I don’t think it would be necessary to approve Apple’s approval.
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