The board is set to email users for email confirmations. I'm guessing emails were not going out until today.
What would you use as a basis for review? No way to know if it's spam or not, and it's kinda fishy we have 60 new member requests?
Where in the admin panel are the requests? I'm only now becoming familiar with PHPBB.
EDIT: Aaaand, disregard that question, too. I found the inactive users area and sent out a reminder email to each for self-registration. I'd not be surprised if a bunch of them bounce...
EDIT 2: Looking at that list, those aren't legit. Just let 'em ride, unless you can confirm directly they're valid humans that are actually interested in Prod racing. I'll go in there every once in a while and delete old ones.