As a LessWrong reader I agree that real-world success should be the defining metric, but want to point out that you can't just compare "LessWrong readers to non

As a LessWrong reader I agree that real-world success should be the defining metric, but want to point out that you can't just compare "LessWrong readers to non-LW readers" - if LW readers are not successful IRL, then it's entirely possible that there's some personality factor that both makes you not successful and makes you read LW. Probably the thing to measure is LW vs. other productivity blogs with a similar audience.