 The webcomic derives its name from one of the propaganda broadcasts by Wallace Breen in Half @-@ Life 2 , in which he is reading a letter supposedly written by a citizen , signed ' Sincerely , a concerned citizen ' , and begins his response with ' Thank you for writing , Concerned ' . Throughout the comic the main character , Gordon Frohman , sends several similar letters to Dr. Breen , Livingston 's intention being to suggest that Frohman was the author of the letter read by Breen in Half @-@ Life 2 . The name " Frohman " is derived from the last name of Gordon Freeman , the protagonist of the Half @-@ Life series . According to the credits on the comic 's website , this name was suggested to Livingston by Sam Golgert , an acquaintance of his . 
