Trolls Among The Internet Community

It's amazing how a couple of people can get in a chat room or on a message board and manipulate and bring out the worst in those around them. So much mortibo being expressed! Why do we as human beings resort to hurting others to feed a need to say, "I'm right; you're wrong?" Enflamed passions collide as each defends his/her own viewpoint as he/she would an endangered child. It's one thing to express a viewpoint and inadvertantly hurt someone by doing so. It's another thing to express a viewpoint with the dominant intent and purpose to hurt or anger someone; there lies the crime.