I've got my privacy set to only friends can communicate with me. Too many squeakers to deal with when I'm trying to enjoy the game. I've been slowly adding everyone to my friends list but with new members coming onboard it's hard to get everyone. If we're in a group together and I don't respond it's probably due to the security setting. Add me as a friend and I'll do the same until I can get everyone in the squad on my friends list.