That kid that attacked you was 17 and basically had no clue. Why are you letting it get to you? There's a lot of Poser work on deviantArt and it's well accepted as far as I can see. I would suggest though, the appropriate place to post your test work is in your "scraps" gallery.

There has always been a rift between some that use high end 3D software and model everything from scratch and Poser users. Believe it or not, we even have our share of "purists" and "elitists" right here at Renderosity! There are those that rail again postwork, those that condemn nudity, some that balk at violence, them that loathes fairies, and the list goes on...oh yes, it's true!  Best advice - focus on learning to use the tools you have to their best advantage and you can't go wrong.

It's all fun and games...
Until the flying monkeys attack!!!