My experiences with the NYDM club have been disheartening.
I was lucky (misfortunate) enough to catch big LA New York Death Miltita promoter and president war pig out front of a local venue. He proceeded to discuss with me the benefits of joining this fraternity. One being free promotion and shows booked for your band. I asked him if they supported just any old act. He responded with "yes, as long as you are in NYDM." The sentence was unsuprisingly sprinkled with phrase "bro". I asked him why they allow the filth to procreate and destroy the scene, instead of promoting the truly great music. He looked at me angrily and said, you just don't get it bro.
His accompanying NYDM members that night were Neanderthals at best, hardly able to function on basic instinct alone. They sat and marveled as this war pig fellow boasted on and on about how much money he makes, how long he's been in the scene (40 years), who he knows, who he can book, and how overall great he is.
My overall impression of the southern California NYDM membership is a herd of status chasing serfs.