Buried deep within the bowels of the Wookieepedia: A list of the many things that have ruined Star Wars! To quoth:
Fans realize something LFL does not, that robust 32-year-old billion-dollar franchises, while seemingly healthy, are in actuality as fragile as two bricks tied together with tissue paper. One mistake, one bad mis-step will cause the entire thing to shatter and fall apart; and Star Wars would be ruined forever.
Selections include midi-chlorians, Callista, Boba Fettishism and many, many more.