So I can't speak for PG but according to the "What Happens at YC" page he mentions that video streams and recordings used to be available but are not anymore be

So I can't speak for PG but according to the "What Happens at YC" page he mentions that video streams and recordings used to be available but are not anymore because it has increased the value of what the speaker has to say. According to the page, speakers feel less filtered when off camera and off record and can thus be more helpful. Here is quoted text: I didn't consciously realize how much speakers at more public events censored themselves till I was able to compare the same people speaking off the record at YC dinners and on the record at Startup School. YC dinner talks are much more useful, because the details people omit in more public talks tend to be the most interesting parts of their stories. And link to page: http://ycombinator.com/atyc.html http://ycombinator.com/atyc.html