Some numbers happen to also apply in this concept.
Since user redblade7 has been a loyal activist of the Salvo Underground Zone And Nerd Network Enterprise activist group, many instances of the number 7 have been spotted.
NC-12 goes through the Outer Banks of North Carolina, and the town of Salvo, North Carolina is the official location of the secret HQ for the Suzanne movement. Username Rodanthe on this Wiki pays homage to the neighboring town of Rodanthe, seeing as the usernames Suzanne, and Salvo were unavailable for a Wikia username.
A YTMND user named Reservoirdogs12 is also a Suzanne activist, so perhaps he chose number 12 as an homage to the highway that goes through the Outer Banks.