Why do people want a word of compliment when a job is well done?
People want a word of compliment when a job is well done because it is a basic human trait: everyone likes to be complimented. A word of compliment, not a lot of flowery stuff, can do more for you than anything you can imagine.
Les explains that Paul was human. When Titus brought good reports from Corinth, Paul rejoiced because the Corinthians still loved him and held him in high esteem. Les says there is no person who does not like to be complimented. When a job is well done, people want a word of compliment, not a lot of flowery stuff, because such a word can do more for you than anything you can imagine. Les himself thanks people who do a good job because everybody likes a word of compliment.