Just as there are enrollment rules that can be setup for courses, it would be nice to setup un-enrollment rules.
Use case: we have a rule for all users with company email addresses to be assigned certain IT training. Eventually, some of these users remain employees, but their technology/email is removed as their role may change. There is no way to auto un-enroll people from courses, based on that change in criteria. We must go in and manually clean those up periodically to have accurate reporting.