To me this is the same argument as the " it was posted on the internet, so its mine to do with as I please"  about pictures.

The free stuff creator has the right to determine what conditions he puts on his work , the same as an artist posting his works in the gallery. Some modellers post preliminary work , or work done for a commercial picture , to the freestuff so more people can get use from a nice model. Many of the frestuff items are as good or better than some of the stuff in the various stores, but they dont want the bother of pakaging and customer support. .  To some what they would make selling a model for Poser isnt worth while.

I keep freestuff now in a freestuff  runtime so it doesnt get used in commercial work.  

A number of freestuff providers have been so mistreated over the years , that they have said "bye ! " and pulled everything , and put the new stuff for sale . Its sad to see that happen .

I have a number of free items , one with almost 2,000 downloads , and how many pms or comments have I got. Thats right , buger all ! , I think about 11 comments , including the two that said , "what rubbish " . Not even 1 % .   I sometimes wonder why I bother with it .

Instead of griping about conditions , people should think about showing a bit of gratitude  for what other contribute .