Some food for thought on what I've seen in this topic:
Due to the eventual release having only 1 character per account, what is there to stop someone from killing and griefing new/ old players, getting a negative rep, then deleting and making a new character?
Surely some people wouldn't think twice at doing something like this.
The only downside to deleting and making another character is any time put into that character.
I therefore put forward a suggestion, perhaps that rep would be tied to your account, or that there would be a timer like EVE currently has for it's characters.
On another note, I would hope the anti-cheating code is solid, otherwise we might have other problems to that effect.