And how many new people know you have any relationship with him?  I do not really care how long you have known him.  A new person comes to the board and sees something like that and it will be the last time they come to this board.
This board is not a personal message system.  It has that ability.  If you want to use that then use it.
If it smells of a personal attack or a witch hunt, it will get axed.  All they do is foster the idea that our board is only for making personal attacks.
Side note:  I am getting a bit worn seeing threads with my name as the topic.  If you want to discuss something with me, then PM me, or email me or call me.