I asked a reviewer on the phone once. He said this:<p>There are 3 levels of review (Technical, policies and X). Random reviewers test different aspects. There is also 'Escalation', which is when the reviewer is not sure and the internal policies are unclear.<p>Furthermore, he says that the policies in the review team change every week sometimes. Examples of policies:<p>- No women with things in their mouths are allowed<p>- If a butt is shown, a reasonable amount of torso has to be shown<p>- You cannot make fun of religion, you can only talk about religion in a neutral manner<p>So the reviewers have a long and complicated list of rules they are to follow, and this rule list is dynamically updated when an app comes in with new type of offensive stuff.