Alternately, a similar tactic as with the "copyright issues" threads could be adopted: post the info in the Product Showcase, then put a brief message in the Poser forum to the effect of: "Check Product Showcase for my new goodies! Replies on Product Showcase thread, please." That will reduce "Ad + 5-25 replies" to "Ad notice" alone, while ensuring that those who mostly haunt the Poser Forum don't miss anything.