I'm now allowed to visit the review pages. What I understood from reading hints here and there, is: There are newbies, which might do a lousy layout, bad questions which aren't real questions, bad answers and so on.
If we teach the newbies, how to do it right, most of them will be prepared for somehow good answers when they reach a certain rep-limit.
Okay, so the actions of newbies are collected and presented for review, and if they are bad, I can flag them, I can correct them, and I can comment them, to tell the newb to improve something, which I can't do myself.
But how do I signal, that a question or answer is okay? There are a lot of answers which are somehow okay, but I wouldn't vote them up, because there is a better answer, for example.
Does the system recognize, that I inspected a posting (and maybe 3 or 5 or 10 other users), and I didn't flag it, or is it just a negative selection?