You are no longer a newb when:

-People stop laughing and pointing at you when you fly.
-People stop ducking for cover or hiding in their cars.
-Your family and friends don't cringe when you come home from flying.
-You spend less time pi**ing with your airplane, and more time flying.
-You stop asking dumb question in these forums (refer to several of my posts)
-When you can take off and land without shoving the controller into your brothers stomache to take over.
-You stop coming back home with a paper bag with tiny pieces of balsa brimming from the top (oil soaked of course).
-You don't need a 6 pack to calm down from 'your experience'.
-You stop turing your body with your plane on the ground to counteract the directional dislexia.

And the #1 thing that denotes that you are no longer a newb in RC:
(drum roll please)
-You do the complete opposite of what I do.