To the extent that there is a "trail community," it exists at shelters and campsites on the trail.
I've had hikes where the woods were crowded and the shelters were full. That can be a drag, for sure.
But I've also had hikes where I'd go for a day, maybe two without seeing a soul on the trail, and spend night after night at empty shelters. That can get a bit lonely and weird after a while.
IMO, there's a happy medium somewhere in between those extremes. I carry a tent and am prepared to use it if the shelter's full, or if I simply don't care for the company. But sleeping night after night, alone in the woods... isn't my ideal hiking experience either.
I go to the trail to escape the rush, the competition, and the noise of "the real world." I don't necessarily go because I hate people. I rather enjoy their company, most times. Moderation in all things....