Every person preaches his perspective in one way or the other. Some people preach the rules and regulations set by their bosses, while others give referrance of their heros. At times we insist and give more importance to certain matters, other times we discuss the matter lightly, depending upon how we feel anything to be morally right or wrong.
I have seen alot of people being equally forceful and firm in conveying their perspectives and giving their respective referrences and examples which suits their principles of life and ideals, yet few of them are considered preachers (mostly with morally right comments) and others easily get away due to freedom of expression (mostly with morally wrong comments)
Even in some cases when the issue is what is MORALLY right or wrong , the label of preaching mostly seems to be given to people who try to follow their respective religons.
Your views ?