Yes. Starting with his ~5000th "friend", he began the routine process of sending messages to people who tried to friend him. Apparently, he sent a lot of these messages. I am not surprised Facebook cut him off. He's using a social network designed to track acquiantances as a tool for propagating content to people he's never even spoken to.
Absolutely agreed. Scoble's always written like Facebook is a tool for marketers. It's not. It was built for college kids. For real-life friends. It was designed to supplement your existing real-life network. And Facebook's got the right to deny you if you use it for anything else.