 ::::I'm not sure about the manner of re-creation. It's not like an article, where one could always write a better article that at least partially meets the objects and put it in mainspace, or at worst put it in userspace and ask for a review.  Even when an article title has been salted, putting a proposed article in userspace is acceptable. But one cannot do that with a category. One could of course redefine a category, but that will not always be possible. So I can't figure out a good procedure. When something might need to be done for which there is no procedure, that's the classic case where IAR is warranted. I recall that during the early era of desegregation in the 50s, some southern state thought it had found a clever way to prevent action by making the decisions in the magistrate's courts non-appealable. The Supreme Court said that in that case the highest state court was the magistrate's court, and it would hear appeals directly. In English history, the role of the Court of Chancery was at first to impose equity in the nontechnical sense by forcing fair dealing with good faith.    We've kept the concept of good faith at Wikipedia  an obvious bad faith action will be reverted without worrying much about what forum to do it in.  I invite comment from anyone who can can correct me, or find a way.