Probably the late-2000s.
I think the only real long-term ding one can lay post-Crisis WW was the Donna Troy problem but I'd say that was also writers couldn't stop picking at that scab. Stuff like the rotating casts and other stuff I'd lay more at DC's feet for giving marching orders to get the book more in line with the rest of their standard superhero fare once Perez left.
Aging up Steve, Etta marriage, and losing the JL founding member status is all debatable creative decisions to me rather than continuity problems like with Donna.