I do agree that there's a lot of back biting and stuff in here, but I think its mostly for fun. I, for one, am acutely aware that my dry sense of humor is often mistaken for anger or foulness. I promise to keep practicing until I learn to type with inflection.
In terms of the rest of the world, it is hard not to be cynical. When I talk to people who otherwise seem intelligent and they think there will be "change" this presidential election or can't wait until we FINALLY have universal health care, or think that ENRON illustrates why the government needs to regulate businesses more.
I sometimes wonder how I manage to be so optimistic.