I participated in creating content for SO Documentation on the C language and shortly after its inception I was convinced that it is going nowhere. Too much emphasis was put on "examples" and many low-reputation users saw this as an opportunity for gaining easy reputation points. Most of the examples were poor and short without any insight on the underlying concepts. There was no incentive for quality content because every topic had to have only a short introduction and a gazillion "examples".

The whole format was just wrong, very wrong.