I've had a lot of issues with iTunes Match and wanted to wipe it out to eventually start over. However, after creating another user account on my Mac, logging into iTunes, enabling iCloud Music Library, seeing all of the songs/playlists and deleting them all... they won't delete. I've already disabled iCloud Music Library on all of my other devices, but they won't delete! Basically, they delete from that local instance of iTunes in that auxiliary user account... but then when I log out of iTunes or delete the iTunes folder from the Music folder in that auxiliary user's library... reopen iTunes, log back into it, and then re-enable iTunes Music Library... they all come back as if I didn't delete anything. I've tried it a few times now, even leaving iTunes open for like a half-hour after deleting all of the songs/playlist so that all network activity can finish. Has anyone attempted and been successful at doing this? All of my other devices, as mentioned, have iTunes Music Library disabled and have hard-copy files of music synced/stored only... and I want to wipe iCloud Music Library clean before re-enabling it on any/all devices later on. So far, my plan is to just leave it and hope that the system purges them based on the multiple delete requests.