"Comments really are a hard problem."<p>Bit tangential, but has anyone (e.g., start-up) solved the problem of massive discussions? Anything over a hundred or two hundred comments becomes unmanageable in a hurry. Some of the larger sites (e.g., Huff Post) routinely have 2000-comment threads that would take days to plow through.<p>Is there a solution that combines karma, upvotes as a means of identifying the 'cream' <i>as well as</i> grouping of sub-discussions and points-counterpoints? I haven't seen any solution take a serious shot at a way of grouping sub-arguments and discussions.<p>The level of comments on the typical news article here in Australia is embarrassingly bad. Any discussion quickly becomes a confusing read without threading and a complete waste of time without persistent identities or moderation. Disqus has taken a crack at the basics, but is it much better for discussions over, say, 500 posts?