Quote - But when I see something like "We do not offer DAZ Studio support.", the way they say it sounds like they're directly middle-fingering DS users.

Renderosity has a forum for DS users so that's not really true.

But your original question was why don't vendors support DS more? Your impression is they do a lot more for Poser users? Frankly I don't think Renderosity sells that much that is only for Poser users. So why are you asking that here? You did not even gave some examples to make your point more evident. Do you mean they only offer shader files for the material room?