As an aside, It would be great to have some sort of federated cred(meritocratic in some way) in hackernews, instead of a flat democratic populist point system; it would lower the potential eternal September effect.
I would love to see a personal meta-pointing system, it could be on wrapping site: if I downvote a "waste of hackers daytime" article (say a long form article about what is life) in my "daytime" profile, I get a weighted downvoted feed by other users that also downvoted this item--basically using peers that vote like you as a pre-filter. I could have multiple filters, one for quick daytime hacker scan, and one for leisure factoid. One could even meta-meta-vote and give some other hackers' handle a heavier weight...