I get that some people despise Klout, but it symbolises "one score to rule them all" (aka the mother of all online map-reduce) better than any other service I can think of, among a tech-savvy audience.

Also it's OT, but there are actually many positive aspects of Klout to businesses dealing with multiple accounts and thousands or millions of followers and interacting accounts. They are less applicable to individuals, which is why it can come across as a narcissistic "social media guru" gimmick.