Go to Modules and publish CBWorkflows as Special...that way only you (and maybe other moderators?) can see it. Make sure its published somewhere that you actually can see it.
You might test it by creating a bogus user and then reporting your bogus user.
you may just publish it as registred too.. normal users should still not be able to see reports.. but they can see connection requests there.. and admins/moderators can also see the user reports.