"There have been many arguments about which texts were really written by Nichiren and there are some uncertain texts in W.N.D...But I think even if these texts hadn't been written by Nichiren, they were in harmony with Nichiren's religious thoughts in the main." -- Kyochi Miyata
First of all, these texts are rarely in harmony with the authenticated writings. Nichiren stated that the most evil people are the Japanese people. Since this is a established fact in the teachings of Nichiren and since Nichiren taught over and over that those who forged writings are the lowest of the low, Miyata is no one to rely upon. Thankfully, we have Jerry "Shinkei" Marcheso who is mastering medieval Japanese and classical Chinese in order to teach us what is and what isn't in Nichiren's hand and what is and what isn't in accord with Nichiren's teachings.