Well nice:
I deleted the one signup today, after reporting it, and tried to register. I have the Level 3, "Auto with Message" SFS Protection Level set in the CP.
Your Email address is currently listed in the
Stop Forum Spam database and as such your account cannot be registered. To proceed you'll need to
contact them to clear yourself from their database.
...but... I have the email response turned off (too many emails are blocked due to my server being shared), so registrations appear to be getting through. I don't see an option to simply reject the registration. Is that correct?