Had a complaint from a user that they didn't notice the message that an Activation link had been sent to their email address, so they got confused with the sign-up process.
Message is indeed rather small and easy to miss, and they don't have great eyesight, so a more prominent message - either larger or a pop-up box - would help them, and indeed others with less than perfect eyesight. So from a usability/accessibility point of view, such an improvement would be beneficial.
