spreadit is a link aggregator and bullshit generator.
It combines the best of structured conversations of reddit, the ability to embed code, LaTeX and community moderation from stackoverflow, and the anonymity/ability to interact quickly of 4chan.
It is designed to be anonymous, though you can(and should) create an account to vote on posts and comments. A Tor hidden service is available, and everything goes through https. More Info »
Moderation is completely dependent on the users of the site- voting costs a single point, you are expected to downvote anything spammy or horrid. People who run out of points are effectively banned. This prevents the ability of mods to take over the site and unjustly benefit/stifle some conversations. Likewise, it is the most transparent site: all votes are visible.
Designed to be censorship resistant(even deleted items can still be seen on user page), hivemind resistant (voting costs points), and corporate/shit ad resistant (view flow of upvotes). Designed to be free and open from the core.