Here is a feature request.
Allow non-registered users to see more options. For instance, on the user profile page a non-registered user cannot see the start messenger, send e-card, and the send message option is not clickable. These options and many others should be available and clickable, but route the user to the login/register page.
This will give a non-registered user a better idea of what they are missing out on, and funnel them into members more easily.