All of the suggestions listed involve changing some mechanic of the site. Some of them are quite good though (I think voting based on karma is neat). My theory

All of the suggestions listed involve changing some mechanic of the site. Some of them are quite good though (I think voting based on karma is neat). My theory: Internet marketers descend on online communities that are popular. Possible solution: No follow on frontpage stories with less than X upvotes or no follow all frontpage stories.