Bitcoins are not an "anonymous currency" per se, they are merely an alternative, non-state supported currency. A lot of people want to obtain and use them anonymously, but there's nothing in Satoshi's white paper that says they must be anonymous. So "the point" of bitcoin isn't anonymous payments. It's payments that are not controlled by government bureaucrats. Wordpress.com is a good example. They want to accept payments from people in Cuba and Iran, which are embargoed by the American government, so they started accepting bitcoin, because no government can block a bitcoin transaction.