Small question: In the readme (first section) you use, as an example, the command: "Run adduser bob 2>/dev/null" why do you add the "2>/dev/null" part? I see

Small question: In the readme (first section) you use, as an example, the command: "Run adduser bob 2>/dev/null" why do you add the "2>/dev/null" part? I see a lot of tutorial/guide/example/etc... do that! I understand what it does (send the stderr to devnull) but i don't understand why would i want to do that?