I can agree with you on your impression. But most of what you see in these forums is just bravado. It is easy to write something brave and aggressive and to seem eager for some violent encounter; until you have the sights on someone and have to pull the trigger. And they have the sights on you and are pulling their trigger. It is a frightening, pant's-wetting, heartstopping and potentially lethal event that most people have not experienced. Hence the bravado. It is our nature to bluster and raise our hackles to give ourselves courage. Since we do not have sufficient hackles, we do it with words.