The buzz out of the Code Conference this week is, naturally, all about the disastrous performance of X / Twitter CEO Linda Yaccarino, who closed out the two-day affair in spectacular fashion. Vox’s Peter Kafka, who has been going to the conference since it started in 2008, called it “the weirdest session I’ve ever seen.” If I had to sum up the vibe as everyone trickled off to dinner afterward, it would be stunned disbelief. As for Yaccarino, she immediately fled the premises with her six-person security detail.