Know the rules!!!

[Jurassic Referee]

Originally Posted by BillyMac

J
If a player legally moves to the far right side of the three-foot wide designated spot, keeps one foot over that three-foot wide designated spot, and takes a normal two foot stride before releasing the ball (from my high school coach, "step into your pass"), his or her designated spot has now become five feet wide.

Yup, and the thrower committed a throw-in violation as soon as he took that "normal two foot stride before releasing the ball". That "two foot stride" will take both feet of the thrower out of the 3' wide designated spot.

You can legally move to the far right side of the spot, but you sureasheck can't legally take any "two foot strides" after you do so. You get one normal step to either side, Billy, not two.