Often we hear people declaring, he is good, he is bad, he is like this, he is like that, he did this, he did that. They seem to have opinion about just anyone and everyone, irrespective of how the person in particular is in reality. Are we right in doing so? If yes, who decides who is good or bad? And on what basis ?

Good and Bad are such subjective definitions. Someone who is very good to me may be not-so-good for someone else and vice-versa. So are we right in judging people merely on basis of their behavior towards us or someone else in particular? What should be our criterions for categorizing people into so-called good and bad slots? Who does it benefit and how? What is the need?

http://parul206.sulekha.com/blog/post/2008/06/who-decides-a-person-is-good-or-bad.htm