All-Star Batman and Robin:Pushing the Envelope?

I was reading a blog and some message boards the other day about the DC Universe comic series All-Star Batman and Robin. The main issue of contention was the use of profanity, especially the F word and the C word. Now keep in mind, this series of comics is not directed toward youth but an adult readership. The writer of this series is Frank Miller and he enjoys pushing the limits of this story into more unconventional territory. In most issues, the profanity is blocked out with thick black lines but the meaning is inferred. In the latest issue no. 10, the black lines were more grey in color and the reading audience could clearly see the bad words. There was an immediate recall of the issue but as you can imagine, it has appeared on e-bay and is becoming a collectors item.
The story is about Batman in his early days of learning how to fight crime. It takes on a very dark tone and as I said earlier, is for adults. Comics for adults has become very popular as can be seen at any Comic-Con and the real question remains, should the bad language remain in the story even blocked out? It is blacked out but we all know what the meaning of the word is. I am all for telling it like it is and pushing to the edge of a story and most people know and hear all the bad words used in this comic and this series of Batman is known for being dark. Blacking out the profanity is good for the unaware reader who picks up the comic for the first time and still gets the overall meaning and tone of the story. I say keep rocking on and I hope more issues of this story will continue.