I think judging others comes from the nature of the ego that exists within us with a despicable passion. So someone seeks opportunities to find the person's wrongdoing.

This type of sifaf can not be allowed to be so long as it can kill the personality character of oneself. usually these traits occur in people who break up the spirit or ideals are not achieved achieved. so he was thinking in a fad.

The nature of each person varies depending on how one has a broad mindset for his life.