It seems like there are more pissed off brown belts in BJJ than pissed off blues or purples. A lot of browns leave gyms, change organizations and become black belts to open their own academies. Is that because their instructors do not want competing schools to pop up and that is why they are not promoting them? It appears that this is an ongoing trend in BJJ and that has caused a parallel industry where ticked off browns could leave their trainers and get certified as black belts. Can anyone enlighten me some more on this self-destructivism please?