What are Kudos? - What are Kudos? Kudos is a content rating system that lets you vote for the messages you think are the most useful or important. When you give kudos to a message, you are giving a thumbs-up for good content and a pat on the back to its author. Your kudos help to boost the value of certain messages and enhance the reputation of their authors. Giving kudos is as easy as a single click, but the impact of kudos ripples across the community.