I'm completely frustrated and mad at Poser for its totally idiotic shading/smoothing algorithms that you simply CANNOT turn off.  I'm unwilling to triple the polygon count (beveling all of the edges is supposed to fix this, according to DAZ)

easy to fix old chap
grab the free edition of UVmapper and Split the Vertices. for poser 4/PP/5 split the vertices. in Poser 6, you can control the crease angle as follows : Zero = total crease. every facet outlined. 100% = Total Smoothing aka Balloon.
Daz are a little biased since Daz Studio at this time relies on Microbeveling. a stupid idea as you have noted. for poser just split the vertices or build for poser 6 + - or both...

btw Poser ain't crap. it's like anyother tool. you just gotta know how to use it...