When you see a new name, don't simply assume he or she is a shade of an old hand.
If you shoot down a new name, befriend them and keep it light.
The learning curve is hard enough without getting attitude from players on your first sortie.
It doesn't take much time to point them in the right direction and let them know what is most important when first starting out here such as controls optimization.
Now if someone logs in and rattles off questions like "how do I start the engines?" or other stuff easily found on the website, let them know nicely where that information can be found.