This has always been a head scratcher to me too…
I understand the convention of approval for using “part” of the Genesis mesh for the Geo-Grafting endeavors of both commercial, and freebies for distribution.
What I don’t understand is any kind of stranglehold on content creators that is stifling potential releases, and furthering the use of, and popularity of Geo-Grafting.
It is not necessary to use any “part” of Genesis for Geo-Grafting. The only caveat is the newly created mesh (from scratch; from one single vertex even) must be coincident located to be used for the grafting (easily done).
I have a simple sci-fi freebie in mind that I want to eventually create, but if I am going to have to go through some B.S. song-n-dance to release, or suffer some sort of cease and desist (like WERTS; and yes, I am well aware of the true violation. I side with DAZ on that one), and have my work pulled because DAZ did not authorize it.
I can create my work from scratch, from a single plane, or hell, from a single vertex, and create from scratch that first plane.
Skiriki:
You can create yours just the same, and would not be in violation of using any DAZ mesh. If you don’t know how to bring your mesh within coincident location, I would be happy to teach you. I say go forth, and create your vision.