She has been seen, and she definitely isn't old and fat, but slim, young and beautiful. I know I've seen her at least once, introducing one of DJ's specials some years ago. (I took a look just now, and that video is no longer on his channel.)Posted by Rawhide68 (here)
Who cares if Olivia is fat or old or whatever, she helps him brilliantly throw the shows never to be seen on camera.
Given the complex and controversial topics discussed, many of them political -- in favour of Trump -- and that they're located in Massachusetts, a deep blue state, she may be choosing anonymity for professional reasons. Doxxing can end careers.