It goes back to what Darude said earlier. It is easy to say anything from the safety of your lazy boy while in a virtual conversation. And these people who say that they would have no problem acting the same in person are full of BS. When you are in the work place, your home, out with friends etc. - topics come up that can push your buttons but most people do not respond with personal attacks against the individual making the point you disagree with. Most people follow an unwritten rule about decorum in person to person interactions because we are cognizant of the fact that we will be held accountable for our actions. Online there is no accountability.

~I know nothing!~
Sergeant Schults from Hogan's Heros