Thanks for the reply. I now realize one problem with the new Review Queue is that the email referred to all reviewable content as “flags” which was incorrect. I’ve updated that notice:
https://github.com/discourse/discourse/commit/76669bb5a6dfa8c3425c1988ae7f240f23fd28cf
Can you check if the invite only setting is enabled? It’s the only thing I can think of that’s forcing you to review users. If must approve users is off.