Agreed. The "annoying" part is that I accidentally created one folder, then several more in trying to figure out the issue. Several IMAP clients I've tried show

Agreed. The "annoying" part is that I accidentally created one folder, then several more in trying to figure out the issue. Several IMAP clients I've tried show me those folders even after deleting them and emptying the trash, so the UI is permanently cluttered unless I can repurpose them. Fortunately "move" and "rename" folder still seem to work.