4) Human moderated in smaller communities
5) Self run reputation systems
Plenty of communities exist out there that aren't a free for all, do not perform id checks, have adult content, and are free from children.
People have basically decided that they don't actually want this.
I know I don't want to visit 10+ different websites on regular basis to keep up on discussions of various interests I have.
> 5) Self run reputation systems
Isn't that basically the upvote/downvote systems used by reddit and HN?
4) Human moderated in smaller communities
5) Self run reputation systems
Plenty of communities exist out there that aren't a free for all, do not perform id checks, have adult content, and are free from children.