We spend a lot of time talking about narrative failures, arcs that broke down or miscarried for some reason. What do you think are the worst examples of narrative disasters in Batman or Batfamily titles? By disasters I don't mean just unsatisfactory or mediocre stories, but arcs that created true ongoing problems that persisted for a while, or may still persist. Also, for ground rules let's say we will not discuss arcs or storylines such as Robin Rises or Forever Evil/Grayson that are currently ongoing, and whose ultimate effects have not yet been seen. My list would include:
1) A Death in the Family. The debacle of the telephone poll is infamous, but in truth the arc was poorly plotted and executed throughout. The climax, with the Joker as Iran's ambassador to the United Nations, raised howls of derision even in 1989, and even at that time was regarded by many as an astounding piece of nationalistic jingoism and ethnic insensitivity, if not out and out racism.
2) Blockbuster/War Games. Two arcs, one Nightwing and one Batman, linked at the hip. Both were misconceived and badly presented. Although by different authors, the two frankly poisonous storylines combined to create a toxic sludge that damaged or killed almost every character caught up in it.
3) Under the Red Hood aftermath. This was a powerful story, no doubt, and much more complex than is often remembered, as it, and the character of Jason Todd, involved a great deal more than the Joker stuff that fanfic writers (and, sadly, some professionals) immediately seized on and have repeated ad nauseam for nearly a decade. It placed a whole tangle of difficult and divisive issues on the table that were intellectually interesting and emotionally resonant (perhaps too resonant, in fact). But from from a standpoint of narrative strategy and moving the characters forward that tangle needed to be taken off the table again, and quickly. It has been said that DC had no plan for Jason. In fact, he was supposed to become the killer Nightwing after Dick died in Infinite Crisis. But when the world he was written for failed to appear, it became imperative to move decisively to clear that whole mess up. Instead, D.C. floundered around for years, and Jason's character got ever more entangled in these difficult and divisive issues, and arguably the character has never fully escaped from the trap.
Those would be my top choices. Yours?