Wait Wait Wait, so its selfish to have a group of online friends that you want to raid and have fun with and not let random people in? I know you dont pve but seriously? its the same reason if your guild has a ranked team you dont let any random joe in off of general chat. I get kickball nights are an exception but if its a guild activity why on earth would you let random people in. At least raiding used to be a competition and was a guild "event" to do and it was all done in guild. So i dont think its being selfish.