> I'm not sure how an index of comments would be useful... What would they be indexed by? By index, I mean a threaded list of messages that one can scroll thro

> I'm not sure how an index of comments would be useful... What would they be indexed by? By index, I mean a threaded list of messages that one can scroll through without having the message body present. In an email/news client, you would typically see something like: Subject Some Author Date Re: Subject Another Author Date Re: Subject A third Author Date Re: Subject A fourth Author Date Re: Subject A fifth Author Date Re: Subject Some Author Date in one window pane. Then you could click on one of the the messages and the body would be displayed in another window pane. Scrolling through that index is much faster than having to scroll through a lot of comments on reddit or Hacker News. And finding a new message was simply looking for ones that were in bold font.