People who are competent and self-confident disclose more than do those who are less competent and lower in self-esteem.

That statement is false

People who are more competent and self-confident actually disclose less compared to the people that have low self-esteem.

People who have low self-esteem tend to constantly find approval from other people in the form of praise, which cause them to disclose more compared to those that have high self esteem