I was making a game in multiplayer and I had it set to "Friends Only" so nobody could join while I was adjusting things. Somebody, however, did get into my game. I asked them how and they replied with: "I just used quick play" This leads me to the assumption that quick play ingores the friends only functionality, but I'm not positive since I only have one example of this happening. If this is true, however, it's not that big of a deal with the kick functionality. I felt like it was worth mentioning though.
