Isn't the same true of hackernews though?
Isn't the same true of hackernews though?
An example of different communities would be subreddits. Reddit as a whole connects all of the communities with a front page, but each community is isolated from one another unless you choose to look over or someone else chooses to look into your community. Cross-community conversation happens from the overlap of subreddits followed between individuals.
A neighborhood is a community. A commercial area you choose to shop in is a community. A forum is a community. A subreddit is a community. HN is a community. Not every person in each of those locations have the same shared ideals and values, though they likely have some overlap since they each choose to be in that location.