What is the origin of inverted happiness?

The origin of Daofu is said to be related to Zhu Yuanzhang's queen:

One year during the Spring Festival, Zhu Yuanzhang made a private visit on the streets of Beijing. When he came to a market in the south of the city, he saw many people talking about a New Year picture, in which a barefoot woman was holding a big watermelon in her arms. This should have been an ordinary New Year picture reflecting farmers' happy mood after a bumper harvest, but Zhu Yuanzhang thinks that the moral behind this New Year picture is "Huaixi woman (hug) (watermelon) Bigfoot", which is a mockery of Huaixi woman's Bigfoot and Ma Huanghou's Bigfoot, because Ma Huanghou is from Huaixi.

So he sent someone to inquire who made the New Year pictures and who was watching them, and wrote down the address and name. For those who laugh without participating, put a "Fu" on the door. Then order the sergeant to go to the house without the word "fu" to restrain people. When Ma Huanghou heard about it, in order to avoid people being killed for no reason, all families in the city had to put "blessings" on their doors before dawn. So every door was pasted with the word "Fu", and some families could not read, so they pasted the word "Fu" upside down. The next day, Zhu Yuanzhang sent people to the streets to check and found that every family posted the word "Fu", and another family posted the word "Fu" upside down.

The emperor was so angry that he immediately ordered the house to be hacked to death. Ma Huanghou used his quick wits and said to the emperor, "When my family learned that you were visiting today, they deliberately put the word' Fu' upside down. Isn't this the meaning of "blessed road"? " When the emperor heard this, he felt that it made sense, so he ordered the release of people and avoided a catastrophe. Since then, every year on Lunar New Year's Eve, ordinary people will put a word "Fu" on the door to show "behave yourself" and ensure peace. This good wish from "avoiding suspicion" to "blessing" has been passed down to this day. Sometimes, in order to fully reflect the beautiful yearning and wishes, people simply put the word "Fu" upside down and pray for good luck, indicating "Fu is here" or "Fu is here"; Second, in memory of Ma Huanghou.