Board Thread:General Discussion/@comment-25523075-20160419165407/@comment-4018164-20160419184757

Well, the only method that i'm aware of for directly getting a list of pages that aren't members of a certain category would be using DPL, like so:  notcategory= Your category name  Though DPL is often criticized for making a wiki load slower, and therefore, if your wiki doesn't have DPL enabled already, perhaps you should use something else instead of asking to enable DPL just for that. An alternative (whcih can be done using MediaWiki's API) would be to:
 * 1) Get an initial list of pages to check (note that if you're gonna list all of your wiki's pages- even if only articles will be listed- could take a significant time)
 * 2) Get a list of the unwated category's members.
 * 3) Make a new list. Go through the pages in your initial list, and add them to the new list if they aren't members of the category that you want to check. You will end up with a list of a fresh, "uncontaminated" list.