Indeed, people are all different, and some have different propensities or compulsions to respond to messages in certain ways.
It is a good test for some, to learn control of such compulsions, and it is hoped that those who can't resist writing blatant inflammatory postings will make an effort to at least trend themselves towards writing less visciously.
For to do so would be self-improvement.
The ability to behave as you suggest, is a measure of one's civility !!