One of the things I hate is (usually amateur stuff on YouTube) in which the person is getting overly scared even when it makes no sense.
Like they'll over act and start hyperventilating at a leaf and saying shit like "Oh my god what is that?!?!?! WHAT IS THAT?!?!" at like...a thud in the distance.
YouTube and Ghost Hunting shows seem to be the worst offender.
Another trope I hate is a horror game one but it's somewhat related; I hate it when the game tells you when to be scared by having a "sanity" effect or by the player character gasp or scream or whatever. Worst is if they have some kind of heartbeat sound effect that plays when you're supposed to be spooked.
But yeah, if a character starts saying shit like "WhAt ThE FuCk WaS ThAt?!" then I just get more annoyed than scared.
Also honorary mention to characters knowing they're going into a dangerous situation and taking no precautions. Why the actual fuck do the characters in It go to fight the clown, with their only weapons being a pipe and a captive bolt pistol. They don't even know its weakness until the last second. You live in the USA, if you want to kill an evil clown monster you could blow it to pieces with a shotgun. Those assholes should have been armed to the teeth, but they have literally nothing. I hate those It movies, they're so bad
"Americans do not have access to a comical amount of weaponry" is a trope/oversight I really enjoy. If you're not literally in New York City then literally everyone is strapped. Even the gun control perverts who act like it's unthinkable anyone would own or need a gun are strapped. The people who claim gun statistics are misleading because guns georg owns ten thousand guns are strapped. If you're setting a movie in america then there should be problems caused by too many guns rather than a lack of guns.
Project Zomboid is a great example of this. You can immediately tell it was made by Europeans because it's set in Kentucky but every house does not contain several shotguns and hunting rifles with a few dozen rounds of ammunition.
Tremors (1990) is a great counterexample to the gun thing lol.
The gun thing really gets me in movies set in the US. Out of all my friends family and neighbors I think there's only one that doesn't own a gun.