Why are there so many people whose names are "recalling bitter experience and thinking sweet"? Is there any special historical significance?

As a product of the times, during the Cultural Revolution, some decision-makers organized and launched the national campaign of recalling bitter experience and thinking sweet in the old society in the name of grasping class struggle. Many children born at that time were named recalling bitter experience and thinking sweet. Just like the children born after the liberation of the whole country are called Jianguo, the children born by Americans who went to Korea to fight by volunteers are called resisting US aggression and aiding Korea, and the children born during the Cultural Revolution are called the Cultural Revolution. Haha, some children are called self-seeking, batch repair and four clean-ups, which is not very nice, but you can tell how old they are from their names. Very interesting.