Another reason is that traditional Chinese characters are more artistic than simplified Chinese characters, and the exploration of simplified Chinese characters in calligraphy has just begun. If there is a master of Rainbow's calligraphy, the simplified characters will also reach the aesthetic feeling of traditional Chinese characters, so it is natural to learn calligraphy by copying, so the words written in this way are the perfect fonts presented by the exploration of calligraphy masters in past dynasties. The reason why simplified characters are used in calligraphy works is because they feel ugly.
In fact, just because traditional Chinese characters and simplified Chinese characters are ugly to read does not mean their essential meaning. If you are used to Xiao Zhuan, people in the Qin Dynasty will feel ugly when they see Han Li. Simplified Chinese characters have just entered the creation for decades and are still not perfect. Moreover, most calligraphers today are not as good as those in history. Now many calligraphers believe that calligraphy works cannot be separated from traditional Chinese characters.
Because traditional Chinese characters reflect the evolution of Chinese characters, while simplified Chinese characters not only have fewer strokes, but also weaken the meaning of the text itself. A good calligrapher also has a very original view on the meaning of words. These Chinese characters, such as ancient prose analysis, are compulsory courses for calligraphers, and traditional Chinese characters can also express the connotation and feeling of works. In the past half century, traditional Chinese characters have been far away from the daily life of most of us, and only professional calligraphers are still writing traditional Chinese characters.