Please introduce me to an unpopular figure in the history of ancient China literature!

He Xiu in the Eastern Han Dynasty, the book "Biography of the Spring and Autumn Ram". The theme of his article is: "Men and women are resentful and sing with each other. Hungry people sing about their food, and laborers sing about their affairs. Men who are 6 years old and women who are 5 years old and have no children are given food and clothing by officials, making them seek poetry among the people. The township moved to the city, the city moved to the country, and the country was heard by the emperor. "

The general idea is that when men and women have resentment and hatred, they sing this emotion. Those who are hungry have no food to eat, and those who work hard sing about the hardships of work. At that time, the government stipulated that men were 6 years old and women were 5 years old. If there were no children to support them, the government would provide them with clothes and food, and let them go to the folk to search for poems that sang about civilian life. After getting these poems, the village reported to the county, the county reported to the central government, and the central government reported to the emperor.

how about it? Is this person unpopular enough? !