You may think he's just showing off for the camera, but this is just the way their music is. Every song is like an athletic endurance test. Seen 'em live probably 17 times since 2001, and every time they are intense!
Truth is still truth, even if no one believes it. A lie is still a lie, even if everyone believes it.
"It's called the american dream because you have to be asleep to believe it" -George Carlin
Support and invest in your local economy. Buy domestically produced goods.