You can’t really cook a person’s rib primal the same way you’d do beef. People meat is not marbled like beef so you’d want to cook it low and slow with a lot of moisture.
So while you could have a people prime rib sandwich, it’s not going to have a great texture.
That era of Internet history was wild. Between weird sex stuff like that and tentacle soup, weird body stuff like goatse and tubgirl, and straight up death like two guys one hammer. It seemed like every third person on the internet was trying to trick you into watching one of those.