matxtx
Good point, except that the "scam-a-rei" take all kinds of steps to prevent students from doing that.
There's fraud--an outright deception of one form or another.
Then you have people that have the bad luck to have bought into aothers con--they are teaching what they "think" are good martial arts--because it fits with their persoanl expereince....not exactly a fraud--but dangerous none-the-less.
I'd be careful about makeing comparisions about how it works with the "best fighters"---its been my experience that against a really good fighter--very little can be counted on to work.
