Sewer Goddess and Fire In The Head has been the only artists who actually followed the idea of my "short quick interviews". In guidelines I adviced to use questions merely as reference what to talk about, but that they could be left out. I think in all other cases it required printing the questions. I wanted to make difference between "real interview" and kind of introduction to raising/interesting/whatever artist.
I think manifest can't be "mandatory". Manifest usually is born out of something. Urge to manifest.. of course. If band/artist has no urge to say anything, it would be foolish to expect extensive liner notes or pamphlets for sake of genre history.