One email is issued for each report submission. The report is then delivered via email to each of the moderators listed in the header section of each specific forum, plus Scott of course.
BTW, I receive moderation reports only for the graphics forum.
All reports are delivered to the mods, even if several people submit a report for a single thread/post. The first moderator to respond generally takes care of the problem.
If the violation is serious enough, the moderation staff will confer upon a possible administrative action, such as banning, via an internal forum established for staff communications.
If a problem is threat-level serious, as in someone hacking the site, then Scott and/or I will be notified, and the appropriate actions will be enacted to promptly correct the situation.
Best Regards,
Robert Richmond