What are the taboos about conference photography and videography?

It is difficult to describe all the taboos of conference photography. Here are a few points for reference: the main leader did not take a clear photo, the photo was not good, and the photo was taken with a bad attitude; due to the angle of view and composition, the main leader became a foil. ; The main members, guests, or the main content of the meeting are missed; the time, close-up or panorama of the shot cannot tell who is the primary and who is secondary; the timing of shooting mass scenes is not good, or there is chaos, or whispers, etc.; mass scenes The camera location and angle were not chosen well, and the momentum of the meeting was not highlighted. The close-up of the crowd scene did not echo the meeting...

I hope it will be adopted.