You can believe what you want. Personally, I believe that either nobody has bothered to report the apps that are still up, or Apple doesn't give a shit about games because those are in their own bucket.
Given that Apple's de-listing rationale is arbitrary and capricious, restricting one's comments to attempts to predict what Apple might ban provides zero value to any conversation.
Their offensiveness meter seems pretty obvious to me. The only thing I'd really worry about is "apps that duplicate OS features" since you really can't predict that without insider knowledge.