"Everyone throws that word around. It does not have much meaning anymore."

Exactly. The real pro's stay away from Poser except for "throwaway" jobs like flyers for the local supermarket.

The "advanced hobbyists" OTOH will get their ego stroked if they can carry a box home with those three magic letters printed on top of it.
Some might actually use the "pro" features, but most will get it for the same reason soccer mom's use 4x4 trucks to drive their kids to school.