The not so little things: Crappy DRM. Nope, no sale for you derplings.
Censorship: Whether it's state or public pressure, it's something I really hate, there is no fucking need for it when there's an 18+ rating in place (and adults hardly should be affected by sex or violece in videogames, don't like it, don't buy it).
Bad Ports: yes, we know already it was designed for console first, still not an excuse.
Being a buggy piece of shit: Yes, most games have bugs on release, but being an unplayble mess, and then expecting customers to wait for month for bugfiex that may never come... that definitively shouldn't be a tolerated business model.
The little things Unrebindable controls: Some people don't like your standard keybindings, and on PC, there is frankly no reason to not have such an option, especially in more complex games.
Shadowstalker16: QTEs in cutscenes
I'd say QTEs in general, they just seem more of a pain in the ass than anything else now (with the novelty of the past long gone by).
Edit: spelling + somewhat misread the title