... and others get upset if their skin comes out too dark (even when that is the true color). Some people (no matter what race they are) have a mental image of hteirselves that just isn't quite the same as reality.
But one "issue" I have noticed with dark skin is that the contrast can be great due to skin oil or perspiration so attention to lighting is essential.
I think what's often the cause of your last point is the size and distance of the light source. Large diffusion and careful distance consideration can really make a difference.