No one "drove" Karsten away. If he hadn't wanted to leave when he did, he'd still be here, because from my interactions with him, he isn't the kind of person who gets pushed around easily.

He chose to leave because he apparently felt betrayed by people he trusted, rather than stay here and work out the conflicts. I, along with many others, tried to get him to come back and confront the issues, but he chooses not to, and it's really his choice.

Nightowl >8#