I think that is incorrect for two reasons. First, people tend to write a lot closer to what they really think then they speak. We are taught to cover our speech, but often not in our writing. Writing tends to be a clearer version of our real thoughts. If only because it is hard, and takes a lot of practice and learning to be able to do otherwise. People who write lies - opps, write fiction - get paid a lot for it because its hard to write in a voice and character other than your own.
Second, I think that what I read in posts, like in here, or in there, is stuff that people would not tell anyone else. I bet there is a lot of stuff on Susan's that the person writing never told anyone else ever. So, when people who are pleasant in daily, real life, often have a more extremist, less sensitive, more outgoing personality online I'm willing to bet that the daily stuff is a put on, an act, and all ZOG, Mud People, Jew Doctor out to ruin the world stuff is the way they really think. They really think that there is a Zionist Occupational Government in the United States. They are just aware that in the real world, its going to get them many friends. White Power, American Nazis, and the rest are just not all that well thought of, and they hide it. When they let it out, then you are seeing the real them.
Before 9-11 there was Oklahoma City, and the deal down in Waco, Ruby Ridge, and in Montana (and lots of other events far less covered by the media). The Southern Poverty Law Center keeps records, its not happy reading. To paraphrase Obama "They are bitter, armed, and praying for the End Times."
And often, very often, I read on these boards "Oh why don't people understand us?" "Oh why do they hate us." Well, now you know.
It's Margaret Meade who said "Never doubt that a small group of thoughtful, committed citizens can change the world." I'm sure they agree with that. It's the intent. Why should that always be good?
