Robert Scoble responded to comments at Search Camps that he is an "edge case" (that's edge not head). I am not sure why he responded so vehemently -- I guess the tone of the comment he was responding to was negative (the audio doesn't really show it one way or another) . Problem is that he is an edge case - he is on the leading edge.
He probably should have taken it as a compliment (must have been an off day).