Is it possible to achieve the ultimate spiritual goal simply by writing about multiple saints or other respected individuals?

According to the information in Chapter 0, it is not. The text explicitly states that writing the biographies of many saints, while a form of Guru service that yields spiritual fruits, is ultimately "one-sided or partial." It goes on to say that it is "difficult, or rather impossible, to attain the ultimate spiritual goal merely through their writing." The source clearly distinguishes this from the most certain path, which involves writing and performing regular, devoted readings (Parayans and Saptahs) of the biography of one's own Sadguru, which is presented as the key to salvation.