I have just done a fresh install without any migration or transfer of preferences/plugins etc, yet have noticed that once again I have Soundflower under my audio in/out preferences! This is one of the reasons I did a fresh install, I used to use Soundflower years ago but couldn't then get rid of it after. Apart from High Sierra the other 'media' related apps I have since installed are VLC, Office 2016, Logic Pro, Traktor, and Adobe CC 2017 (Photoshop & Audition.) Do any of these apps include Soundflower as a bundle when installed? I can't figure how else it could have appeared again, like I said I haven't migrated anything from my old account. --- Post Merged, Oct 14, 2017 --- Found the culprit, it was Toast Titanium. Apparently its screen capture software uses Soundflower.