i just want to say bagginsbill is completely right.

on the use issue:  i have several w.i.p.s that bombed at the scene phase.  some that need postworking i'm not sure of. and i have about 16 or more ideas for stills or series.  on top of that, i don't post everything here, because not everything ends up being gallery quality.  i have several images that didn't make the cut, even with postwork.  now, i don't think that's ever been because a product let me down (though in a few cases it was).  though i will say, the only products that have let me down have been exceedingly popular.  mostly, it's been because of either my own, my computer's or poser's/d|s performance (and let me say, i find d|s either on par with poser or below it in terms of stability and rendering speed). 

sure i have many, many more products than i use (which is awful).  but i'm trying to rectify that.  freebies are special because while most merchants choose to keep something around a while, freebies can vanish in a month.  so tons of people will download on the off chance they might need your freebie. 

but even accounting for people not using what they bought and collecting rather than obtaining tools, renderosity and the major sites are really the tip of the iceberg when it comes to poser artwork.  i've spotted the millenium fantasy dress and some daz textures in cgsociety 2d work that didn't credit poser at all, let alone specific merchants.