I believe this what the Node Cult on RDNA was about, but sadly a lot of the links are dead, now. I'm perfectly willing to use whatever forum (this or RDNA or one of our own - setting up a forum's no biggie... done it before) to share our GCed materials... but I do want an official word on the legal aspect of this.

Get clearance, and boy-howdy, am I ready to share! And what a concept... suddenly converting your runtime wouldn't be such an overwhelming task, after all.

Mind you, I have a partition dedicated to Poser, and on it, a runtime in a folder called PoserGC. It is growning leaps and bounds. What is amazing about this is that in the process of converting the material, I'm seeing all these neat ideas (some even valid!! heheheh) to make materials look more realistic. And, I find myself tweaking settings and jeez, this is unleashing a whole new beast!

Monterey/Mint21.x/Win10 - Blender3.x - PP11.3(cm) - Musescore3.6.2

Wir sind gewohnt, daß die Menschen verhöhnen was sie nicht verstehen
[it is clear that humans have contempt for that which they do not understand] 

Metaphor of Chooks