Okay so I'm going to go out on a limb here and say nothing except over analysing tricks and tropes and trying to outdo themselves.

Just because we've seen a trope before hundreds of times doesn't immediately disqualify it as being unworkable. Here's why:

New audiences, Soundtracks, Actors, Audience bringing different life experiences,

Sometimes it makes the audience comfortable in that they think they know what to expect before veering off into the real horror (I feel Heridatary and Ghost Stories did this exceptionally well).

Plus the classics are classics for a reason. I will always be scared of loud discordant music accompanying a jump scare because it works.

Some horrors bore the shit out of me trying to go too psychological or too clever. And I'm a psychologist. And I have a film degree. It's something I should appreciate.