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.
Alternative Character Interpretation: Is Dracula really pulling a hoax on Dr. Endelmann in order to get close to nurse Morelle, or is he really seeking to cure his condition, but has his vampire nature taking the better of him?
Fridge Logic: Talbot attempts kill himself by jumping into the sea, even though at this point in the series he should be well aware of how hard it is to kill him.
Tear Jerker: The deaths of both poor Nina and Dr. Edelman surely qualify. The latter probably gets bonus points due to his first going mad and killing several of his friends before getting shot down by Larry Talbot.