If you're going to be an old coot on the internet, you may as well learn the ways of the internet. Face-palm = "You're so erabarrassing that I need to cover my face in shame because what you said was utterly erabarrassing and ridiculous. It's not a prize. If you earn one, it's the equivalent of someone telling you you're a jackass. Plus other shit." (Used in a general context)
Welcome to the internet.
Enjoy your stay.
Welcome to the internet.
Enjoy your stay.