That's over now and I really miss it. Buddy had some health problems and ended up with an overwhelming opiate addiction and just stopped hanging out with anyone. Some of the friends still get together for a weekend poker game but it's not the same. It was so cool to have a place you could go hang out after work where you knew everyone was fun to be around and they liked having you around. You never know who would be there or what the conversation would be but it was always a good time.
I've tried to get the same thing going myself, but have never been successful. I'm not sure how you get that started. Once it's going, it's self-sustaining, but you have to reach a critical mass of participants and has to occur really regularly, even daily. I think maybe it takes a very specific kind of person to be the host.
Anyway, that's what the OP's campfire analogy made me think of. I really miss it...