Video game content creators hate reading ( especially controls ).
Edit:
There are plenty of times I'll watch someone play a game and then get confused about how to do something in it because they either don't look at the controls in settings or breeze past it or don't read what a quest entails. They just play on in a braindead like trance and get confused and angry as to why the game that gives you everything you need to know doesn't tell them something vital like a certain control they need.