What are the odds being forced to read through five pages of people calling you a cheater might be considered sufficient punishment for this? I'm a fairly new player and you hardliners intimidate the crap out of me with this sometimes. I could see myself making this same mistake, for the same reasons ("Oh, they didn't appoint a Lord so I guess I'm still Lord?"). Taking a heavy hand to him after dragging him through the mud isn't gonna help your retention issues.
Which is why I suggested a simple solution. The ball is in his court.