The cruelest act is no act.
The cruelest judgement is no judgement.
Deciding to be non-judgemental is an excuse to escape from acting to help oneself and others.
Instead, use your power of judgement to determine what is right and wrong and seek to bolster in oneself and others what is right and to overcome that which is wrong.
Loving is the act of doing, judging tells you how to act next.
When two people climb together you halve your chances to fall.
Most people never stop to think what makes us laugh. It is the "fear of loss of dignity, social embarrassment, exclusion from the group, being fooled/exploited, death, injury, or sex. The more anxiety-prone the subject is, the better it is as a subject for humour."*
Why do it then, why not just forget about laughter?
Well nothing dispels anxiety faster and helps oneself and others around them relieve stress and become more attentive, alive.
Humor therefore is a weapon, it can be used for good and evil. Like all weapons, one must respect its potential for damage.