發送短信 : Understanding online pseudonym usage and its possible effects on platform utility

  _  _    __   __  __    __     ___      _____   
 | \| ||  \ \\/ // \ \\ / //   / _ \\   |__  //  
 |  ' ||   \ ` //   \ \/ //   | / \ ||    / //   
 | .  ||    | ||     \  //    | \_/ ||   / //__  
 |_|\_||    |_||      \//      \___//   /_____|| 
 `-` -`     `-`'       `       `---`    `-----`