Not only did the ads look ugly, but they were added to the comics after the images had already been finalized by the artists. Which meant that the art was corrupted by a kind of terrible photoshop edit.
Fans and artists were (understandably) cranky.
Of course this set the Has DC Done Something Stupid Today counter back to zero. And now, a month and a half later, Deadpool is reminding us of that time DC did something really, really stupid.
Of course, Marvel isn't immune to stupid.
Part of me hopes this is just some friendly ribbing. But the really petty part of me is secretly hoping DC will have an awesome comeback. And then we can watch these two giants bicker.