I think maybe this is because the user who left the review is a New Zealand national residing outside the U.S., so they do not have any first amendment rights.

I think maybe this is because the user who left the review is a New Zealand national residing outside the U.S., so they do not have any first amendment rights. If the user was American, I think they could assert a first-amendment right to anonymous speech to prevent being identified. (Although such a right is not absolute, there is a balancing test involved: https://storage.courtlistener.com/recap/gov.uscourts.cand.369702/gov.uscourts.cand.369702.39.1.pdf https://storage.courtlistener.com/recap/gov.uscourts.cand.36...)