Some of our instructors have mentioned that, while in discussion, students have addressed them by their first name or wished them well in their future classes, clearly not knowing they were addressing their instructor and not a fellow student. Of course, students should know the name of their instructors, but I think it would be helpful to have some signifier for instructor and TA accounts. A colored ring around the profile picture? Addition of title (Instructor, Professor, Dr. etc?) to the display name? Or is there already such a setting that I am missing?