Excuse me, I didn't understand a single paragraph.I... believe that has been changed. It used to send to people +-20 Ranks from you, roughly. Only to those who the server considered "active" at a time. But... for about a month now, I've been saying raids from people way below 20 Ranks from me. And nobody else has been inside those so there's no way that some friend/union member shared it.
So how does it work now? No idea.