Verified status. You send in a pic to admins with you holding a sign that has your username/date/similarworlds on it, then send them in a separate pic where your face matches the face of the person holding the sign. Once you do that, you become verified. Then, you decide who you want to see the verified pic, if you let everyone see it, it is a green circle with a check mark, it is gray in color if you make it private for friends only or admins only