Read the full story here
Caffinated wrote: »
That's because they're being made smaller as there are only a few creative ways to hide them. I'm guessing it's a nod to Sergio Aragones, the author of "Groo the Wanderer" who would hide the words "The secret message" once in each comic book. This was a brilliant idea because it caused readers to scrutinise and appreciate the fine detail in his work that would probably otherwise go unnoticed by many. The hidden words were notoriously difficult to find and made for an amazing metagame inside a brilliant and often very funny comic.
Skadi (the other awesome, if abandoned comic here) is essentially "if Groo was a woman this is what it'd look like", which is why I tend to believe this is the case.