I find knowing the direction very useful when mining. I had a huge branch mine system that extended in each direction deep underground so when I started a new mine system far underground it was useful to know what direction I wanted to start a primary mine tunnel so I wouldn't hit my old mine system. Without this info I had to keep the direction clear in my head while making all the turns underground. This is very helpful for future mine systems!
yes when i firt saw it the first thing i did was spin around
f for facing i dont know why that seemed so obvious to me