With regards to the kicking after 30 mins afk you can as I say easily get around that. After all the game can only kick you if it registers you as afk but if you were to say have you character constantly moving or engaged in looking at something with an option menu then it can't register you as AFK and thus lies a problem - kicking people who go afk for 30 minutes just doesn't work when the number being kicked is less than the number trying to get in.