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.
Nightmare Fuel: How easily Harry is corrupted. Also how Harry kills Rita.
No Yay: Harry and Voldemort when Voldemort is in his ugly snake form. Though Subverted when Voldemort reverts to his Tom Riddle form. Harry sometimes wonders if there's something wrong with him that he doesn't mind.
Ron the Death Eater: Dumbledore manipulated everyone with a fake prophecy and painted a target on the Potters backs and he's been trying to get Harry killed since his birth.