HN's aggregator/filtering function is good, but not exceptionally unique - the same articles often appear on sites like Reddit or get referenced on other blogs.

HN's aggregator/filtering function is good, but not exceptionally unique - the same articles often appear on sites like Reddit or get referenced on other blogs. But the quality of discussions here usually surpasses other sites. In fact, after reading an article, I often find myself ignoring the comment thread on the originating site, then coming back to HN to read the comments.