[rschmitty]

Because that is a huge fuss to do what practically every other app can easily do by dragging the border, including other windows apps.

Sometimes you need to change your prompt to be a different size and an annoying 5 step thing is a big fuss

[nivla]

He/she is referring to dynamically adjusting the characters size (its line wrap) when resizing the window. You can even resize the command prompt to fullscreen but the lines wrap to 105 characters by default.