[Mikkel_Pedersen]

I guess the advantage of having it with letters, is that if you ever need to change your ip, then you can update your letter version, and then all users will be redirected to your new real server IP (if they had your letter ip version at their favourite list). So when you make a banner for your server, you can have the letter version there, and not need to update the banner, since if you need iP change, then you just manually update the server letter ip version, to redirect to the new ip.