All this shows is its individuals not groups. You found a group with the wrong individuals in charge. I had a similar experience. FB turntable group. Hardly anyone ever gets the chance to hear high end turntables, arms, etc compared. Since I had a new Origin Live Sovereign coming I let them know anyone who can make it welcome to come and hear. Post removed, in minutes, no reason given even when I asked. I let them know thanks but no thanks I am gone from this group. Never have gone back. Refuse to contribute.
Same exact post, literally cut and pasted into FB Tekton Owner's Group, not one single word changed, whole bunch of people interested and a few even came.
Both groups are audiophiles. One just unfortunately infested with and run by the wrong individuals. You say clearly it is a money bias. But who knows? Could be any of a number of biases. Only thing we know for sure, it ain't a audiophile bias.