Darryl King of web development company ireckon conducted an experiment three weeks ago. He publicly tweeted that he was unfollowing Guy Kawasaki because of his spammy Twitter activity.
Specifically, Darryl King said:
“i removed my follow of @guykawasaki as it just seemed to be twitter spam not a conversation.”
Guy obviously tracks his mentions because within five minutes he replied to Darryl. Read more