Today I had an yellow ellipse with "11" in it in my top toolbar next to "review" link, which took me to a screen allowing reviewing flagged posts.
I only recall seeing that screen once or twice before, in all my time here.
What are the rules and circumstances for showing it? Minimum rep? Random "quality control" review? Only when there are no mods around to action those flags for a certain amount of time?
I have a hard time believing that every flag that happens is displayed that way to high rep users, since I would have surely seen many more of them before today.