For example, this request for Pelin here:
Pelin G8F and G8.1F
...points to a renderosity product that's listed as unavailable:
https://www.renderosity.com/marketplace/products/161476
...but Pelin is available on the main Daz site:
https://www.daz3d.com/pelin-g8f-and-g8-1f
It seems like a product link on a request showing the product as unavailable might discourage people from adding points, which would be a shame since the product is actually available, just elsewhere.