Coming to a forum like this and complaining that Poser users aren't "real artists", or their work isn't "real art" is a lot like going to an NRA meeting to argue for a ban on all firearms.  It's absurd and inflamatory, not to mention entirely unproductive.

Further, many of the artists who purchase and use Poser and various premodeled items are hobbyists.  Most of those people have jobs outside what they do with their artwork, and enjoy having not only materials that facilitate their artistic expression, but a venue in which to publish, discuss, and share their visions.  Sure, we won't likely be competing with the likes of Waterhouse or Degas for wall space in the Tate or the Louvre, but the value of art lies in what it means to the creator and consumer of it.  For people without the resources (which includes time as well as money and training) to model their own components, Poser is a valuable facilitator for expression of an artistic idea.  

If people who are either professional 3D modellers, or hobbyists who enjoy making their own models from scratch don't want to use (or even approve of using) Poser or premade products in their art, that's great for them!  

Who do you think you are to judge anyone else for expressing themselves with whatever materials are available to them?  What you are doing here is as small minded as suggesting that someone who cooks with herbs and vegetables they didn't grow and process themselves isn't making real food.  People who judge art by monetary value, or technical ability alone clearly do not understand even a fraction of what "art" is.  Instead of trying to make yourself feel more important by criticizing other artists, why don't you go model yourself a person who cares to listen to your whiny opinion?