It drives me nuts when I visit popular blogs that serve as a place for discussion and yet they have no nesting of comments (three levels does not count). Forcin

It drives me nuts when I visit popular blogs that serve as a place for discussion and yet they have no nesting of comments (three levels does not count). Forcing the linearity of comments does a big disservice to the readers, because inevitably people will go off into tangential conversations where #45 will reply to #15 and #79 will reply to #45. A lot of (but not all) people make up their own informal structure by prefixing their comments with the name or the number of the comment(er) they're replying to. I feel like I'm in the Stone Age when browsing through these conversations after reading through HN. We already have solutions for this crap! Very few websites seem to be getting this right, and I can't understand why. Someone or something needs to force these people to evolve. I would love to see a piece of software that analyzed a linear comment stream, inferred the dependencies, and restructured the comments in the browser. Is there anything like this?