A few days ago I added a mandatory text (a User Field called “Interests”) for applicants to help the human moderators approve their application (“a few words please to help the human reviewers in deciding to approve your account.”
It’s early to say but two suspicious accounts put random password like text in there which makes for easy rejection.
I’d like my mods to help with processing account reviews, and they do, but they can’t see emails or IP addresses which is a bit limiting. Stopforumspam has been quite a useful resource.