Is there an addon or something that can record who registers each account? I've had someone on my server with SA creating accounts with SA then harassing people with the admin client. If they create the account I want to know who did it and if they don't I hope I'll be able to tell who is doing it by last login time.

Unless someone else has a solution to this without removing all SA accounts. I have like 30 SAs and 80 members.