This is generally spot on. Also, in my last life I only used LinkedIn when I needed a new job, but as a startup founder it became far more useful. The #1 featur

This is generally spot on. Also, in my last life I only used LinkedIn when I needed a new job, but as a startup founder it became far more useful. The #1 feature is "who do I know that can give me a warm intro to person X?" This requires, of course, keeping your LinkedIn network only full of people you actually know and not accepting all the random connections.