He literally doesn't say words in most of their songs and is one of the worst live performers I've ever seen. Their bassist carries their shows.
you're blowing my mind with how incorrect you are, but i suppose you're entitled to your opinion, however shitty it may be. the guy says enough to captivate every head in every place i've ever seen them, so i guess he's doing something right. also, the fact that you've somehow overlooked how great both kurt and ben are is also nuts. lastly, i'm not too sure how one gauges the productivity of a live performance, but if you're looking for "amount of words spoken at one time", you should probably go see busta rhymes.