These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
The Colonel's pretended pseudo Paternal affection for the other high Council members (Especially Lecoq) can come off a little creepy at times
In Companions of The Treasure there is a very long scene between Marguerite and Irene, her intent is just to manipulate her into letting her borrow her room, but it comes off allot like she's seducing her.
Villain Decay: Lampshaded, in the final book, Pistolet states, "Since the Colonel's death, The Black Coats are run almost as badly as the police." This makes it clear that the once omnipotent organisation has become a shadow of its former self.