The dA staff is in the process of revising the rules and restrictions regarding what can and cannot be submitted within the Mature Content guidelines. The dA staff person who is the 'Decision Maker' on this subject is discussing this subject NOW!
You can give your input and may get a direct response through most of the day today. Go here to read his policy statement and to give your input.
[link]The sooner you go there the more likely you will get a direct response.