Because the author supposes that there must be other people like himself who grow very tired of seeing Microsoft's elegant messages 'Please wait while your computer shuts down' and 'It's now safe to turn off your computer' at the end of every Windows session.
Life is short.
MomLogo was designed to help you lead a longer, happier life filled with joy. Open the door, get the elephant in, close the door. Yes, we know you are now groaning at this terrible joke. But the great thing about MomLogo is that you can put in your own jokes or any other kind of text you may prefer. Wait while Windows destroys all of your data.