Sarcasm? Perhaps a little.
Ridicule? Definitely not.
I was completely serious, and I'd say that Sixxgunn's answer was legit as well. When you ask a vague question, you get vague answers 
Not everyone uses graphite ( I'd guess that most do not. -- controlling powder precisely is much harder than using an airbrush) It's not like it's a ubiquitous thing that is a part of every build.
So, when asking about a particular technique it's important to explain to people what your goal is, so that they know how to answer. The more specific and detailed your question, the more helpful answers will be.
When I do my helmets, I get that fine texture by misting different colors on top of each other. I'll use a few shaes of green / grey / etc... in very thin mists back and forth on top of each other.
I use graphite powder sparingly for smudges and heavily dirty spots, but not much at all. Most of the coloration is done with paint.
