I wouldn't worry too much about that if it was indeed "Bittorrent". Bittorrent requires people to stay logged in and uploading files, which is why it's more for larger files than small....and Poser files are small in comparisson to movies and CD's that are most often shared through bittorrents. Chances are most of, if not all of, those Poser files aren't even complete.

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi