Haven't been able to get a straight answer since then, so I unfortunately don't have any updates.Moderators pressed admins about this prior to the switch but they haven't been able to fully resolve it yet. They did tell us iTrader/pTrader information is saved/archived so they can work on it. No idea on an ETA, however.
I had 700-800 reviews that I'd love to gain access to. Ended up taking screenshots of them just to have for my own use until it's resolved.