Creator Backlash: Alan Moore has expressed distaste with the existence of the series (but then again, he's been pretty bitter about anything Watchmen-related that he wasn't involved in). Dave Gibbons, however, is more supportive, if not slightly ambivalent.
Money, Dear Boy: Widely assumed to be the reason for this series' existence.
Subverted with Dr. Manhattan when the Crimebusters scene is presented in a retconned version that doesn't correlate with what it was like in the original Watchmen.
Several passages where Adrian describes his past are taken verbatim from the original Watchmen. The first issue is about 50% recycled, in fact.
The Crimebusters scene is repeated word for word, but with new art.
The part where Moloch meets Adrian after being released from prison has Adrian greeting him saying the exact same thing as in the Moloch series, though Adrian's posture isn't the same, and his car is a different model.
Prequel Gap: Around 25 years after the last issue of Watchmen was initially published.
Schedule Slip: Several of the series have been delayed for unspecified reasons.
What Could Have Been: Eduardo Risso was given the task of providing the art for the Moloch series. Imagine if he'd been brought in earlier and been allowed to work with Brian Azzarello again.
The Comedian appears in more titles than any other character. Rorschach and Curse of the Crimson Corsair are the only ones where he doesn't show up.
No character appears in all of the books.
Rorschach is the only one of the books to feature no one from the original Watchmen except for the titular character, and to not reference any plot elements of the original.
Several scenes appear in multiple titles. The most frequently seen of these is the Crimebusters meeting from the original series, which appears in Ozymandias, Nite-Owl, Silk Spectre and Dr. Manhattan.