Replace Ban?

[xAndrewx]

Well, as you know GK is a server that cost's money (for the customer).
The final thing you want is to be banned, this should be the final option (for the staff), not the first.

Banning another player should be the final option, this would be a maximum of a week ban, unless it's a perminent ban.
To prevent harassment, make some kind of jail. You won't be able to message another person while you're in this jail, Change your nickname, use a 'toall' and add a kingdom tag.

I'm not too sure about how to prevent the other person logging off. Insteading of banning this player and then waiting for them to contact you with an email or using the support tick, you can simply warp there account(while they're offline) to the jail.

This is just my opinion, bans should only be used for something serious.