It is "perhaps the most re-posted Revit resource in history!"
One of the oldest blog posts I found about it was at REVITit http://revitit.com/blog/?page_id=207
I am trying to find the 'original' post document to link to it - anyone have any idea where the 'oldest' 'in the wild' version of this exists?
In harmony with the title of this blog, I thought the description of the final phase was worth re-stating (yet again, I know...) Here it is:
Copyright 2003 Chris Zoog
You have mastered nearly all things Revit. You “know” what Revit “likes”, and what it “dislikes” during model construction, a sixth sense, really. You spend your time exploring and tweaking advanced scheduling, OBDC, external parameters, AR3. You have a template to beat all templates, families for every situation.
To know What Revit Wants is indeed to "know" what Revit "likes", and what it "dislikes"...a sixth sense, really.