I’m looking for some clarifications on eBay rules please

It is ok to list items, which have, what could be considered adult themed items – like items with profanity and/or drug use? I am asking as I have seen several items on eBay which have explicit and/or swearing text/images on the item itself (but not the listing title).  If this is not the case, why would items not be removed when reported through the “report item” section or when speaking to members of eBay Customer Support who refuse (correctly) to even read or describe what is on some items?