Hmmm, link still works for me. This is the audio version, no video:
https://www.youtube.com/watch?v=-dj_X3vexak
As for your theory, yeah, every single time I have met someone in real life, online interaction gets better. Only one notable exception, Nurse Ben. He was a very short-lived user here (got laughed out), but was on TTips and other sites for years so many here will remember him. Weird guy online, met him in person more than once and while he still seemed a little off, the interaction was always friendly and pleasant. Yet after meeting in person, he got strangely more aggressive and personal in our online interaction. But he was just a malfunctioning human, everyone else I can recall has been cool.
And without question, the worst offenders here have met very few people. And generally, the people who are dicks to specific people haven't met those people IRL.