!! The Worf Effect, Used For The Right Reasons, Is Not A Bad Thing
While the result is weakening of the character, there are good, valid reasons for having TheWorfEffect show up. Here are a few possibilities:
# If you allow the 'Worf' enough victories, he can be used as a good yardstick.
# If you're trying to make clear that physical force alone is insufficient. (See, for example, many early examples of the TropeNamer, or the opening of Film/StarTrekTheMotionPicture.)
# If either WorfHadTheFlu is built into the plot. (Many Superman fighting under the effects of Kryptonite/Red Sunlight stories qualify here, for example.)
# If the point is for the Worf to be a distraction. (Many a SugarWiki/CrowningMomentOfAwesome has been made by a character going into a fight expecting to die in order to allow time for others to accomplish some other objective.)
# If the 'Worf' is explicitly, in character, an idiot of some kind. (While it weakens the character, it at least usually doesn't directly contribute to BadassDecay, merely to his "What an idiot" rating.)