I started to respond, "...then they could be aggregated in a separate top level 'blogs' tabs and upvoted if interesting." ...but then something groovier occurr

I started to respond, "...then they could be aggregated in a separate top level 'blogs' tabs and upvoted if interesting." ...but then something groovier occurred to me. What would be all kinds of cool would be an aggregation that automatically sucked in an RSS feed listed in a user's profile for all users with, say, over 100 karma. That'd be similar in spirit to the Planet Startup idea from a while back, which sadly didn't get a critical mass of feeds.