twitter counter sucks

I really don't get this site at all. Was there any usability testing? where introductory text that explains how things work, what to expect? Is anyone going to reply back to me with a fix for the twitter counter problem? I'm confused and irritated. @heatherrast shows 86 followers. The twitter counter on my site, http://insightsandingenuity.com, only shows 72 and hasn't budged for days. What's up?