To answer the OP's question (and not go off on some tree hugging rant
), I would say that I am not worried about Yellowstone. We live too close to worry about it...mainly because we would not have time to spare it a thought before we were wiped off the map anyway.
Same idea when I lived in the Seattle area. Being concerned about the "Ring of fire" volcanoes (Baker, Rainier, etc...) all going up at once was pointless. Nothing you can do about it and you wouldn't survive it anyway...