Time Bomb Ted
I could tell you the answer to that but then I'd have to have you killed
All pilots, some ex senior management, some airline, some GA, flying training, a seriously respected technical consultant, no ATCers.
PPRuNe started out for Professional Pilots, but like Topsy has just growed.
Check out the "Forums Home" list, not bad since the mid nineties, I can recall pre D & G days on Reporting points when we were having bets as to how long it would take to get to 10,000 members, I think circa 2003 was the best guess then
It was/is not our intention to exclude them.
There is even an ATC Forum which is heavily trafficed about half the main Reporting Points volume
ATC Forum
Enjoy