I have been looking at a lot of details on the show n' shine part of the forum and it feels like the metal flake paints don't show off the detail of a car's paint job after a detail. Maybe it's just me. Does anyone else feel the same? If so, I wonder why people bother getting a metal flake paint job on their car in the first place. Just a random thought I'd place out there. Thought it would be a good discussion.
Of course you are right. Little metallic flakes are little surface areas oriented in many different directions or angles in a clear medium which makes the refection of the light much more complicated than a solid color does. Reflecting the light in different directions is the whole point of metallic paint. There is no possible way to see the true shape of a car with a metallic paint job. Orange peel in a paint job does somewhat the same thing to the light reflection as metallic does, in that it makes it more complicated by making it more multi faceted. Metallic paint hides the shape of a car, making it more subdued, which, if you have an ugly car, really helps.

On the other hand, if you have a car with really beautiful flowing lines like a Ferrari GTO, metallic paint would take away from the shape of the car, reducing it's sensual appearance. With metallic paint, you see the paint much more than you do with a solid, and with a solid color , you see more of the car.
A well detailed metallic looks like the metallic sparkles and pops more, because the clear medium in which the metallics are suspended is more clear.
Why do people like metal flake? I think it is to make a car with a simple shape that is very boxy or is an indiscriminate blob or egg shape more visually interesting.
Example, 1970 Chevy Nova looks nice with metal flake because its boxy, with pretty straight simple lines. A 1980 Chevy pick up truck looks much better in a metallic than a 1950 pick up truck truck does.