In case Sequenced hasn't actually explained it to you yet...
Basically, most types of moderators on newgrounds get a golden aura. This goes for audio moderators, art moderators, review moderators and forum moderators.
There are alse icon, genre and wiki moderators, but they don't have a golden aura (possibly because otherwise there'd be more golden auras in the forums than anything).
Although only forum moderators (such as jarrydn, by the way) have any say in what a user should and shouldn't do on the forums, these other types of moderators get to wield a golden aura as well.
I HOPE THAT CLEARS UP SOME OF YOUR QUESTIONS