Comment by chrismorgan

Why do you say “deceptively hard” instead of “fundamentally impossible”? You can increase the probability it’ll give good answers, but you can never guarantee it. It’s then a question of what degree of wrongness is acceptable, and how you signal that. In this specific case, what it said sounds to me (as a Shopify non-user) entirely reasonable, it’s just wrong in a subtle but rather crucial way, which is also mildly tricky to test.