I've never really noticed reflections on skin textures. 

I do notice them on the eyes and personally I like that because I'm not all that great with making my own lights and to get reflections in eyes in Poser it involves more than just lights. So if there weren't reflections in the eye textures my figures would have dead looking eyes beyond a problem of positioning.

The only problem I have with reflections is when they are on hair. However, it depends on my figure's pose. Sometimes the reflections look ok, and sometimes they look very obviously out of place.

I have seen some texture packages where there is an option to turn reflections on and off.  I don't know how compicated that is to create in a package, but it's a viable option that gives everyone what they want without penalizing the other side.

"It is good to see ourselves as others see us. Try as we may, we are never
able to know ourselves fully as we are, especially the evil side of us.
This we can do only if we are not angry with our critics but will take in good
heart whatever they might have to say." - Ghandi