- This is implemented for backward compatibility. It is flag to tell Moodle that this role is a "guest" role.
- This does NOT provide a role with all capabilities of a pre-Moodle 1.7 guest. All guest capabilities must be individually allowed.
- Note: It is not necessary to allow any legacy capabilities unless using old 3rd party code that was not designed for Moodle 1.7 and doesn't yet support roles.