[YpciJQdo]

I think Mr. Imafuji's response was right on the money. He's got one side of the story, very vague and with no details, he didn't see what happened, and he has no idea if this student was exaggerating or not. It would extremely irresponsible for him to jump to the conclusion that you did, that what the sensei did was criminal, and so advise this person. So he gave the best, most sensible advice; try to talk to your sensei, and go from there.

I suppose it's something of a selection bias, reflecting only a small percentage of the kendo/iaido praciticing population, but I'm surprised at the number of questions people ask of an Internet forum like this, or a Q&A type forum on Mr. Imafuji's site, rather than asking their teacher. I could see it if this was a student who'd noticed a pattern of behavior, had spoken to their teacher, but were still unsure if that environment was a healthy one. Here you have one incident with one student, who rather than talking to their teacher directly, goes to a complete stranger (if a well-reputed complete stranger) on the Internet.

Edit to add: Not that I think turboyoshi is being irresponsible. Only that Mr. Imafuji, in his particular position, would be irresponsible to respond that way. The lines are drawn a little more broadly for us disinterested kibbitzers.