This is undocumented historical speculation. You're a slanderer. No, you're a slanderer. Sharp as a diamond. Nichiren wrote a lot about correct understanding of Buddhism and correct practice.
Correct practice involves the refutation of slander.
This makes for bad PR if people don't understand where you're coming from. I used to think that correctness meant following rules and being very disciplined in the sense that I am bad somehow, therefore I must discipline myself. I put myself through that whole trip. A lot of people I know did too. We thought we were being correct, but it was really about needing to feel in control of something.