Some would call it OCD, others attention to detail.
When I originally uploaded the STL file for my Leonardo Voltron I discovered that the figure was facing away from the “camera” in the rendering. Since I had to run the model through Netfabb to fix up some minor details anyhow, I rotated the entire model 180 degrees in Sketchup, re-exported to the STL, and then put it through Netfabb.
That way, when you view the rendered image of the Voltron parts, they’re facing the viewer.