It appears so based on this statement on their site. It also sounds look like they are attempting to transition to a general 3D market place due to contraction in their existing target market. The use of the word "survive" doesn't exactly scream that they are soaring though.

"Despite membership revenue losses Poser World managed to survive through 2016. As of May of 2016 Poser World is now an individual 3D model and content store."

And I have no issue calling two people an independent vendor I guess. :) So I guess that's out to 3 stores.