Collected Edition Blog writes for Bleeding Cool:
A couple weeks back, you heard about changes DC Comics made to the first deluxe hardcover version of Tom King's Rebirth Batman, differing from the trade paperbacks. These changes included repositioning the issue credits and, most importantly, removing some of Batman's dialogue from one of the issues. This change appeared to be in answer to criticism from readers about King's use of repetitious dialogue in the book.
It's less controversial, but DC has made another change between an original issue and a collection, also seemingly in answer to reader complaints. This time it's James Tynion IV's recently released Batman: Detective Comics Vol. 3: League of Shadows.
Originally in Detective Comics #954 (collected in League of Shadows), Batman confronts Ra's al Ghul in the Batcave and makes reference to their recent fight in Washington, D.C., in All-Star Batman #9. The only problem was, that issue of Detective came out the week before that issue of All-Star, spoiling All-Star's "Ends of the Earth" storyline's big reveal.
Readers were not happy:
hey @Ssnyder1835 the preview of next week's issue of detective effectively spoils your big all star villain for #9?
— Mica ™️ (@tiredasfucktho) April 9, 2017
So others might be warned, today's Detective super-duper spoils the next issue of All-Star Batman.
— JOHN BYRNE…you have failed. This. City! (@DavidMann95) April 12, 2017
@Ssnyder1835 It seems Detective #954 spoiled All-Star Batman #9? What's up with that?
— Hussein Wasiti (@bullthesis) April 12, 2017
I think the editor's note in Detective Comics #954 (another amazing issue from @JamesTheFourth) spoiled All-Star Batman #9's villain.
— Jorge Bocanegra (@JBoc924) April 12, 2017
The new League of Shadows collection of that story alters the reference. Before, Batman said, "You should have learned your lesson in Washington, Ra's. I won't be strong-armed into submission." Now Batman's dialogue simply reads, "I won't be strong-armed into submission."
Obviously the change comes too late for single-issue readers, but the problem has been rectified. Ironically the collection of All-Star Batman Vol. 2: Ends of the Earth was released before Detective Comics Vol. 3: League of Shadows, so this wouldn't necessarily have been a spoiler in the collections the same as it was in the single issues. Personally I like these kinds of connections between books and the "internal advertising" would seem smart from a sales perspective, but I guess it's good that DC removed the dialogue for those it might still have spoiled.