Our registration in Canvas courses at our institution are handled by an external server - when students drop through the reigstrar's office the change is reflected in Canvas a few hours later. What will happen to a student's Discussion board posts if they drop a class and are removed through the Registrar's office? Do they remain visible? Do they appear as if they have been deleted? I would hope that dropping a course will not affect anyone who has replied to a post that the dropped student made.