Just apply the one character per player rule already! Re-add the log-in/out time out and ban people having alts.
your mom playing or you from a 2nd laptop.
Example of Abuse I create and level up a biggun character or a leader. In a few hours, i will level up him to level 24 without even looking at the screen, as these chars are easy to level up.Then i will change it to a char that is harder to level up. Maybe a crafter, a thief or a lockpicker.So, you erase the difference between levelling difficulties for different characters.
Retarded idea. If YOU want just one character, go on, have it, but i dont.