Re: honorary dan ranking
Happens all the time... becoming a huge financial supporter of the sensei/dojo/organization seems to be a common factor. It's particularly iritating when your kohai suddenly becomes your sempai right?
IMHO, it's bearable as long as you and others really now how he REALLY is (technique, etiquette, etc.); and this usually becomes apparent when these honorary-dan-holders are asked to teach, help with demonstartions, attend seminars, etc.