Not that all AMA members are golden, but I will assert that the offenders here were not AMA members, and beyond that, I am sure they did not care about any rules
Can you be 100% sure that none of them could have been AMA members? As one other operator on this thread stated, he can see his glider when it's at a 3,000 foot altitude, and some of these pilots were complaining about drones being seen up to a mile away. They must be pretty big drones.