That guy Ned Evett of fretless glass guitar fame plays that tuning. It's largely because he uses the capo/slide so much, because of how he can move it up and down the neck with complete ease. This means that the guitar is "automatically" "playing" the E chord with no um... (can't call it fretting if there aren't any frets!) holding the strings down, and chords of the same structure as the capo/slide is moved down or up. He has devised his entire system of chords and scales using this tuning. Didn't The Fripp Unit devise a tuning and restructuring of the normal system ?
Anyway, impulsively, I thought I'd give that tuning a go, and it has turned into a wonderful exploration of new-sounding, melodic chords. I'm building chords and progressions more by sound than with the normal structures/patterns I learned and used until recently (2023 heard me use an odd tuning (DADGGD) and build new chords inspired by the sound of a Kotamo). This is just as much fun, partly because I took most of the last year off due to fretting hand thumb arthritis, which is better now (physical therapy).
This will all end up in another round of meandering EBow noise, possibly later this year.
This tuning is E Major and is common to slide players. Ben Harper uses it for several songs on his Weissenborn. He also uses D Major....D-A-D-F#-A-D. I have my Weissenborn tuned to the D Major version and switch to E Major with a capo on second fret.