Snakes give birth to snakes, just as pseudo-masters give birth to other pseudo-masters. A snake may tell you he or she is not really a snake, but that does not change the fact that his parents were snakes so he is snake whether he likes it or not. Master rank issued by a pseudo-master makes the recipient a pseudo-master, not matter the good intentions of the recipient.
Here is a link to an example of a martial arts “soke” that belongs to a multitude of organizations, groups, hall of fame, etc. Does he really think true martial artists believe in or are impressed by all this bull? All is it shows is that this is a nobody with an inferiority complex who thinks he is important because he has certificates from a bunch of phony organizations. The way I see it, if a person has rank issued by a well-established, well-known, well-respected organization, why would he need to pay to get more rank from a multitude of other shady organizations.
I’m not a believer in black belts in multiple arts, unless the arts are not related, such as Taekwondo and Judo. Taekwondo does not use any of the techniques that Judo uses, and vice versa. It is similar to playing baseball and basketball; both are team sports that use a ball but they little else in common; therefore, one may play both sports and not get the two mixed up.