What's the bet that most of those comments are from guys ranging in age from 15-25? It's a combination of attention-seeking and a lack of a fully developed pre-frontal cortex.
Sound judgement doesn't kick in for many males until mid-late 20's when brain development is complete, and a bit of experience tempers outbursts.
Yeah, I thought it was pretty sad as well. Those guys who sat with Linus are the audience that make this all possible. I'm proud of them for having the guts to sit in front of such a massive crowd of viewers, and there were a lot of great questions.