There is an equivalent of GND for male figures - Tyler. And I already explained his problems. ;)

I render mostly males anyway. The existing male figures aren't great, but they're Ok until something better comes along. The fact that they're not perfect doesn't mean I'm not going to do the best I can with them. The female figures aren't perfect either.

I'm obviously the wrong person to try and answer the question of why male figures aren't more popular beacause they are more popular with me.

If it's down to the attractiveness of the base figure then I guess the reason there are less male renders in Poser than in other areas of art must be that people want something that looks good and new and shiny out of the box and don't want to work on it themselves to create something they like?