help needed with Camera switching code!

Projects General Guidance
4 
int Cam1 = 3;
int Cam2 = 4;
int NewsCam = 5;
int StillScreen = 6;
int Mic1 = 8;
int Mic3 = 9;
int Mic4 = 10;
int NewsMic = 11;

If NewsCam and StillScreen get nice names, how come Cam1 and Cam2 get crappy names?

If NewsMic gets a nice name, how come Mic1, Mic3, and Mic4 get crappy names?

  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);
 
  
  // Enable internal pull-up resistor
  pinMode(8, INPUT_PULLUP); 
  pinMode(9, INPUT_PULLUP);
  pinMode(10, INPUT_PULLUP);
  pinMode(11, INPUT_PULLUP);

What was the point of giving the pins names, since you never use them?