Community is different. It is somewhere between loose organization and chaos. People do things because it's right to do them or they want to do them, not because it's required. Things come together, or they don't.
My current experience in an unnamed place in an unnamed western state is a positive reflection on the goodness of community. A family has a genuine misfortune, there's a fund-raiser.
People want music? It happens, right there.
Folks need to communicate?
Put it on the bulletin board.
Christmas coming up? Decorations materialize.
If someone is offended, they keep it to themselves.
Decorations will be taken down soon enough.
Neighbor too busy with work to decorate the fence?
No sweat, that's what neighbors do.
Need something you don't have?
Check the free box outside the Mason's Lodge on Main Street. Today there are books, a hat, an inkjet cartridge and a clean egg carton for your hens' product.
Folks tend to only put nice stuff that still works there, not stuff that should go to the dump.
A few local folks, through a variety of circumstances, wouldn't eat regularly if not for the kindness of others. Cafe serves them, other regulars add a buck or two if they can when they pay their bills to cover the losses.
There are more examples every day, but just thought I'd offer a small glimpse of living communites that function with out someone "in charge."