Nation/Town Bans

[John Doe]

I notice lately with such a big nation there are alt of trolls. I thought of a cool way if the God-Emperor had a command that banned a player from joining a town associated with that nation. This would stop trolls from entering nations which the town mayors didnt know not to invite for various reasons.

So the command would be
/n ban derpherp

That would ban the player "derpherp" from joining a town associated with that nation they're are in.