The title of this thread is wrong. It is not 'Bo's Law', it is actually called 'Poe's Law'.
Here are some references:
http://en.wikipedia.org/wiki/Poe's_law
http://www.urbandictionary.com/defin...=Poe's+Law
rationalwiki.org/wiki/Poe's_Law
conservapedia.com/Poe's_law