This player was reading Encyclopedia Britannica's entry about Charlemagne (to supplement a college course about the early Middle Ages he was listening to on his ipod that day) and was too distracted to fulfill the standard requirement to say both 'hi' and 'gg' to Vostro. Feeling dejected while waiting for that ever important 'hi', Vostro was unable to muster the strength to say 'hi' too. But both players broke the awkward silence at the end, each offering an enthusiastic 'gg' to show the other how deeply appreciative they were to have enjoyed that fleeting moment of Warlight bliss together.
Maybe a bit later Vostro encountered a second player who gets paid to play, who also did not say 'hi'. "This happened twice, it must happen all the time."