As for the culpability of Daz users, it pertains mostly in regards to greatly exaggerating Poser's decline-- if it were as real as some claim, then you would see fewer V4 clothing/accessories/etc. items on Renderosity with Poser mats.  In reality, any decline in Poser is due solely to Rendo's shift heavily towards Genesis 2 and the failure of Dawn/Dusk product sales outside of Hivewire3D. Though Genesis 2 is finding some Poser-exclusive support on Rendo.

This is going slightly of topic but when you look at Statistics you get a little more straight forward view on the state of Poser. When checking for decline it's best to start at the customer end and not the sellers end. As fall off generally hits in the number of sales first and the number of products will react over time to the reduced sales return. Stats according to Alexa Global Ranking (Based on traffic) Lower is better -

• Hivewire3D is ranked 453,851

• RuntimeDNA is ranked 103, 582

• Renderosity is ranked 30,255 and

• Daz3D is 12,655

Renderosity has dropped over 10,000 rank positions in the last 12 months, there is no historic data for either Hivewire3D or RuntimeDNA as there ranking is to low. Daz3D has been going from strength to strength. There is likely a number of contributing factors that have resulted in the reduction in Renderosity traffic and not just one silver bullet. But it is hard to deny a decline in Poser usage and new user take up with anything but pure opinion,