Discourse

Just talking to DK about this... it's almost feels like they're offering what disqus do, but have spun out the idea of comment threads into a larger structure that acts like a forum but is still fundamentally a grouping of comment threads. That's one way of seeing it anyway.

Another thing... it doesn't seem possible to delete comments. (from their about page)

Content is forever

Posts or replies on Moot are permanent. Once they are more than 2.7 minutes old, have any replies, or have any likes, they may not be removed.

I wonder if that means that an identity is always tied to that particular comment, or if they take the reddit approach where you simply see [deleted] where the username was (if you delete the account without deleting the comments).