A gullible person on a social networking site like facebook
who updates their status with messages telling other people to read, copy and post the same message them selves.
This is done because they believe that if they do not, something bad will happen, although this is almost certainly untrue.
Person 1: "Facebook
will become a paysite from August first! Post this message in your status. If enough people do it, the staff will change their mind."
Person 2: "Oh gee, another Town Crier."