Im Artikel What does it mean to be a Nichiren Buddhist? auf Buddhajones gibt es in den Kommentaren eine bemerkenswerte Antwort auf diese Frage:
I’m of the opinion that people who chant daimoku are practicing Nichiren Buddhism. The more complications one adds beyond that, the more conflict will arise.
Add the Gohonzon and you’ll never hear the end of which scrolls are supposedly demon-infested.
Add a religious organization and you’ll never hear the end of which organizations are supposedly wonderful and which are poison.
Add Gosho study and someone will insist on study of the Lotus Sutra.
Add study of the Lotus Sutra and someone will insist on the study of all other sutras, too.
Add Gongyo and the debate will rage: A&C or A,B&C? in English or Sino/Chinese? Three prayers or five prayers or one prayer?
You’ll find it’s not so easy to maintain a simple practice of minimum complication. Many people cannot devote their practice solely to the chanting of daimoku. They feel that there needs to be something more to it. I wonder what, though.