Curators are rewarded with Curator Points for being right about what’s worthwhile to others. The more CP you have the more your upvotes and comments will be featured.

You earn CP when others later upvote content that you've upvoted. The more upvotes you gave and the more upvotes future people give the more you can earn. You can also lose CP if others later downvote your curations. The earlier you are to vote on a piece of content the more CP you earn - most of the CP is earned by the first 10% of voters.