Thread:Merrystar/@comment-26180812-20170807174619/@comment-11001-20170808055630

Hello Chris. The only way to really do something like that would be to program a bot to make the deletions. You should have a dedicated account for that, which you give sysop rights so it can do the work. The bot itself is run by your on your computer, while logged into the account.

If you don't feel comfortable learning how to do that, you could possibly find a user with a bot in the community here who would be willing to help you out -- asking in the forums is a good place to start.

Having said all of that, I would encourage you to consider ways to salvage/categorize some of the content rather than simply deleting it all. Just because a page has no categories does not mean it isn't a good fanon. Perhaps you could make a project to categorize some of the better ones by the user who created them, or by general fandom. It sounds like it's a lot to filter, but you could start by removing "Short" articles (Special:ShortPages) first, as those are likely to have little on the page to keep in any case, and see where that gets you. At the same time you could look at some of the pages in the "Long" articles (Special:LongPages) to see if any of those are uncategorized, but still worth keeping....