Think Amir needs to go through a list of questions he might be asked for his next apperance and figure out some good answers to them. Like the % of users questions, as has already been mentioned there is so much good stuff he can reply to this, but instead he just avoided it and to me it kinda seemed he got owned by that Ed douche when he could not answer.
The most impressive guy to me was that 3rd dude. He was calm and collected and had well informed answers to all the questions. Just came off like someone you wanted to listen to instead of the two other screaming guys.