Reddit's reddiquette advises users to use the downvote arrow only to indicate that a post is not constructive or off-topic. Further, users are told that it's best not to downvote just because they disagree with something.
The vast overwhelming majority of users on that site use downvotes to indicate disagreement, or dislike. That interpretation of downvoting has, like it or not, spread throughout the internet. Here? Yes, probably even here.
>The first wave of forums were built from the ideas of Usenet, IRC, and ISP-hosted chatrooms: open-access "places" that served as Schelling points for anyone interested in a topic. There was no real possibility for moderation, and the sheer scale of the problem (the possibility of a 10000:1 user-to-moderator ratio) made "community-building" impossible.
It's quite possible to create a community in an IRC channel. I was part of several quite vibrant communities in various IRC channels in the mid to late 1990s. It's also possible to moderate IRC channels. You can be kicked out of a channel for a period of time, banned from channels, or even entire networks. Operators in individual channels can even choose to grant "voice" to some people and then set a channel mode (+m, for moderated) so that only people with voice can even speak in the channel.
>One more interesting aspect of the newer Internet is that, when engaged in these group-forums, people naturally lean toward developing "faces": different presentations of aspects of themselves, tuned to the interests and values of the group.
Sociologists have long studied how people present different aspects of themselves to different groups depending on the norms of those groups. I would not call that a feature unique to the "newer" Internet, but the newer internet does allow for greater separation of whatever parts of your personality you feel like expressing.
I miss the old culture of the Internet because it was easier for me to find people who shared my interests but had viewpoints different enough from my own that it was possible to have very interesting conversations. Your definition of community sounds, quite frankly, rather boring to me. I fall solidly in the camp of "nothing interesting is happening without a little conflict". What has been lost on this "newer" Internet is the ability to have an ideological conflict remain purely ideological. There is a greater tendency for online conflict to veer into the realm of the personal, especially in these modern communities that you prefer, because there's a shortage of ideas that are "permissible" to argue about.
My $0.02, anyway.