I would like to echo an earlier comment and say that it would be nice if there was a link to a Vendor's credit gallery obviously posted on the product page.  I too never realized such a thing exsisted, and I almost always try to credit vendors.

I do leave reviews for products that haven't made their way into my gallery.  I may have played with the items and done some test renders but never finished a pic, or some such...

Still, I can see what thefixer means and I understand the frustration.