When I hear community, I generally think there's some kind of connection or interraction setting a group a part from something like "a set of people that walked into a building at the same time." I don't really think of HN, Reddit, any generalized "forum" type website as a community, in that most of the people never get to know eachother, or worse, never even really try. Most of the content is closer to set and forge…
The human mind can only follow all the social interactions of a group of around 150 people -- give or take. That number likely varies a bit from one person to the other and some historical figures, like Napolean, were successful in part because they had an amazing memory for personal details of people around them. I was privy to the results of a good quality private study some years back when I was briefly the lead m…
> Hacker News has done a good job of formalizing certain things and that keeps the signal-to-noise ratio high here even though the sense of community it once had when it was smaller is no longer something it seems to have.
Yeah, I think that this is essential to a successful forum but also brings up exactly what the issue is, I think. If you're optimizing for signal to noise, you're already beyond the scope of "community", in that you've already got too many people and too much content to ingest. Optimizing signal to noise on a forum is great with the microblog/RSS lens I apply, because it means I'm not seeing offtopic or irrelevant content in my feeds.
I also kinda think that a part of community (when thinking about community being defined as a group of people that are connected and feel involved in eachother's lives to varying extents) _is_ offtopic conversation. "How are you doing?" "How's your grandpa", etc. You can't allow this type of post/behavior on HN, because if you open those floodgates you're getting way too much noise to handle, but I also think that's why the shift has gone the way it's gone. You can't learn about eachother beyond subject matter that's attached to the topic of an individual post.