It is more credible to say that calligraphers in Qing Dynasty wrote more to avoid the Ming Dynasty's "Ming", especially after the word "Da". Otherwise, writing "Daming" may lead to imprisonment, and the word "Tu" in Baotuquan may be the calligrapher's artistic need.
Mr. Zhang Tongxiu, a research institute of Shandong Academy of Culture and Art, said that in the art of calligraphy, due to the balance of font structure or aesthetic considerations, there are often cases of adding strokes and reducing strokes. The ancient people's writing of these two names cannot be said to be wrong, but only the creation of calligraphy art.