One of the really frustrating things about SO is that once you reach a certain rep threshold, you lose the ability to suggest edits, and instead gain the ability to just make the edits directly. I'm a lot more likely to do the former, because it helps ensure that if I actually made a mistake, it will be caught by the people voting on it. And so SO has lost out on a bunch of my suggested edits because they took away my ability to suggest edits.