First of all, hiding words is a technology of embedding words into images or other media files. This method makes it difficult for the duplicate checking system to detect similarity by changing the form and structure of characters. However, Tibetan characters did not really change the content and viewpoint of the paper, but deceived the duplicate checking system through superficial changes. Therefore, from the perspective of academic ethics, Tibetan characters are an immoral act, which seriously damages the integrity and credibility of the academic community.

Secondly, the duplicate checking system not only relies on the similarity of words to evaluate the originality of papers, but also considers other factors, such as semantic similarity and structural similarity. Hidden characters will only affect the detection of text similarity by duplicate checking system, while ignoring other important detection indicators. Therefore, even if the hidden text technology is used, the similarity of papers may still be detected by the duplicate checking system.

In addition, with the progress of technology, the duplicate checking system is constantly updated and improved. More and more duplicate checking systems begin to use advanced algorithms and artificial intelligence technology, which can detect hidden characters and other forms of plagiarism more accurately. Therefore, even though hidden characters may be effective in the current duplicate checking system, there is no guarantee that duplicate checking detection can still be bypassed in the future system.