I guess the same thing'd happen if you saw the Prime Minister show up online...

[ That's not even something she's really considered. She's seen politicians posting on social media plenty of times, either to shill opinions or in an attempt to appear approachable. Is it really unthinkable for the king of a magically-technical kingdom to do the same thing? ]

In my experience, that seems like something you'd be better off asking a Merlin, rather than their Arthur...