Hi Gilden,
On the site you mentioned, why does it work so well that way?
Well, it's a long story but I will try and make it short.
Here in America it's all about "giving". (Hence the holiday "Thanksgiving")
Example:
For exercise I go to the local high school and hit golf balls.
I enjoy listening to the high school band on Friday nights from a distance. (several blocks away)
The next morning I go to get my exercise and find trash that people has left the night before.
So, instead of getting my exercise from golf balls I pick up the trash. (giving back)
Here lately it's been a little much for me because the high school field is many hectares in size.
"why does it work so well" Because they give back to their community and they are much respected for it.
David