Mattlock, what if I'm a very established artist with many award winning works, yet I do not derive consistent income from jobs relating to photography. Does that make me any less of a photographer?
I don't think representation or percentage of income goes towards the description of model or photographer.
However, I would say that just because you buy a camera doesn't mean you're a photographer. If we were to apply that same low bar to models, it will not mean that an unrepresented model is not a model, mayeb something closer to say, a human being who puts on clothes.