Quote - Of course, it's totally optional, not mandated or obligated

No offense, but apparently from that statement, you did not read what I was responding to, which explains why you thought I was a bit over the top.

Papillon68 said "I asked because at Daz it's mandatory to provide mat poses".

Not mandated? It's mandatory.

Of course vendors can make both mat-poses and material collections, but they generally do not. Since one is mandatory they make that and call it a day. They don't make the material collection, and that makes the content annoying for Poser for the reasons I gave. It clogs the library up scanning the contents instead of just the names. And it's confusing as heck to look at a bunch of pose files and wonder which are the materials. It would be better if mat-poses were disallowed instead of being mandatory.

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Renderosity forum reply notifications are wonky. If I read a follow-up in a thread, but I don't myself reply, then notifications no longer happen AT ALL on that thread. So if I seem to be ignoring a question, that's why. (Updated September 23, 2019)