Yesterday, in a fit of stupidity, I deleted a number of auto-added instructor accounts (those of the form "instructorid_courseid") from the Admin Course without realizing exactly what I was doing. I've been searching through the forums, and as far as I can tell, these accounts can be used to grant the instructors of courses "admin" status by raising the permissions of these accounts to "professor" in the Admin Course. Additionally, they could be used as a way of conveniently emailing anyone who has used webwork as an instructor. We've never used this functionality, so I'm not worried about that; and the admin user is still intact.
I'd like to know how else these accounts are used. Are there underlying links back to the courses from which they stemmed, that will lead to consequences for the professors of these courses? I seem to still be able to log into those I had as a professor.
If there are other consequences of any sort, can anyone tell me? A couple of faculty have just created courses for the upcoming semester, and I'm really hoping I haven't ruined any work that they've already put into it.