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.
Fridge Logic: Cars are mentioned often as presently existing. If there's enough metal to build cars, how is there not enough for steel boats? And why is it that technology mentioned contrasts so badly with technology seen?)
There are NO RANGED WEAPONS in the series, even though crossbows at least, and more likely pistols, should coexist with the pirate's level of technology. Especially since automobiles are present.
Squick: Sidorio magically impregnating the twins' mother.