Flag items with user notes
When an instructor/proxy puts a user note in the online request forms, flag these requests with "User Note" or something similar, but keep them in the current queue. (This could be done in tandem with 17708071, which asked for the items grid to indicate when there is a user note.) Our instructors (unsurprisingly!) think that when they write a note, we are alerted to their note, but in many cases we never see the note, especially if they add the link or upload the PDF themselves.