Destructive criticism is a kind of criticism usually made in order to harm someone. It is used normally as a factor of defamation. It is used to hamper some one' reputation
Explanation:
Criticism is a gate way which provides a reader with clarity of thoughts and sometimes criticism can be too harsh that it would ruin the derogate and destroy the self esteem of a person who faces the criticism. No boy likes to be criticized, this is the fact and hence it depends largely on a person on how to react to a destructive criticism.
Analyse the relevance the criticism and decide how to resolve it when you observe that the criticism is relevant. The critic must not be too harsh while criticizing. He must be professional and turn his criticism in to a complaint which would make both the critic and the criticized to focus on the problem and solve it.