Idea:
A toggle to turn off friends joining your game when in games.
More info:
I personally think this should be a toggle to turn on and off as there are times where friends will follow me into games to kill me or such, which can be a bit annoying as much as they might be added on my list. Or times where I am with a friend and people joining to ask even though I am already playing, or if I need to be alone and people are joining. (I dont know if this is possible but this should be excluding the hub, just for games)
This is just a personal opinion, a few people agreed to it so I decided to suggest it 
Feel free to comment whether you agree or disagree, everyone has their own opinion, and I would like to see reasons ^^
