Being able to share your upvoted links?

The full text of the linked tweet is "poss help 4 info overload? if on sites like Reddit / HN u cld view just the links a given user has upvoted (if they want to share them)".

If you could find someone with your tastes, you could see just the submissions they think are worth seeing (or get an RSS feed of it).

Of course you'd have to choose to share the information about which submissions you've upvoted.