Game mechanics (i.e. selling on the market) required they allow people to stay logged in. This game does not have that same issue. Retainers sell for you, even when you are off line. There is NO reason to allow people to just sit on the server. However, there is every reason as a player right now to sit on the server because you may not be able to get back in.

They need to boot those who are afk for 15 minutes.

They need a real queue, not just a message that tells you where you are in line but actually puts you in line and moves you through. As far as I can tell, it doesn't do that.

They need to give us a means of telling how crowded a server is so we can make informed choices, a means OTHER than world is full when you try to log in!