I said this in the thread that immediately followed Maj.issue's; It's the simple fact that we all share not just a hobby, but usually a love of Aviation, or history. A common denominator that tends' to draw people together. This tends' to establish the 'group' concept. You won't get everyone on board, but most tend to gravitate in. It's the main difference between flying online in the Arena's, and playing a boxed sim.
Think of it this way. You can go down to the supermarket, buy a 12-pack of beer, go home, and get drunk by yourself. Or, you can go to the bar, and drink a beer at a time, but drink with everyone else. AH is kinda like the bar...
Edit: I took too long typing this the first time! Eskimo beat me to it!
And I'm pretty sure this is in response to what happened in G/D.
I'd like to point out this: There have been more than a few deaths' in this community; There have been memorial flights, special events, etc.
Hitech has not, I believe, ever told us no, or deleted a thread, where someone died. Usually, the simple
, followed by one or two kind words, Is a lot less typing than many do on these boards' complaining about the flight model, or the Arena split, or what plane we should get next, gun control, Iraq, or Dems'. vs. Repub's. The Group seems' to be an underlying concept of Human existence, that, and the need to feel part of one. So, it tends' to be a natural function.