Obviously it's not against the rules to make original art using pre-made models...or none of the Poser images would have been allowed. I think you're taking your complaint to the wrong people. If the contest stated "no Poser art using pre-made models", then you'd have something to complain about. Simply stated, the contests are open for every type of 3D creation...whether modeled completely by the entrant or not. If you don't like it, don't enter, simple as that.

Besides...it's not technically considered other people's work when I change it to be original to my ideas. That is why pre-mades are allowed to be used in entries. The entries are original art, as they are original ideas by that artist. Get a grip...if it bothers you so much, don't enter the contest.

P.S. - Maybe I'll give Blender a try...but remember, I may not have the same talent as you, in which I can successfully make my own models. You act as if we all can do the same things if we just "give it a try". I'd like to point out...again...that a painter that is excellent at that form of art may be terrible at another form of art. We are not all the same with the same talents...and I see that as a good thing.