It may be time for HN to add a feature that TechMeme already offers: combine multiple links that cover the same story under one thread. I'm sure the smart people at HN have already considered it.

For instance, yesterday's news of Apple's Sep 9 launch date was shown on TechMeme as one item, with about 100 sub-links from every possible publication. They even get the primary source right most of the time, which is great.