Oooooh, no. Alot of fans go "SILVER AGE BULLSHIT", but seriously, look at DC's storylines. They are NOT going back to the Silver Age, far from it. They are, of course, bringing back some elements that were used in both the Golden and Silver age, but they are definetly moving the narrative in a more sophisticated direction, making comics tell more epic storylines suited to them instead of being stuck in the 90's rut.
DC just realised something with Morrison. "Instead of creating new characters all the time, why don't we go and look for the old concepts we created so many years ago? There are many of them which would make such awesome villains!" So they did. And that proved to be good. It's not a comeback of the old ages, but rather using old elements in new concepts and new narratives and new storylines.