Board Thread:Support Requests - Getting Technical/@comment-31924693-20150411145830

On the Beatles Wiki, we have the problem that the wiki has been absolutely flooded with image and video files, nearly all of them uploaded merely for the sake of uploading. Some of them could perhaps be useful in articles, but those are almost impossible to find due to having to look through all the dross.

(Because the main culprit has persisted in doing so despite a warning blog post, and because some of his uploads have been copyright breaches, I have banned him for a month. Am I correct in believing that the Digital Millennium Copyright Act made copyright violation a crime in the USA, as the Copyright, Designs and Patents Act 1988 did in the UK? Perhaps someone could give me a few details.)

Hence I would like to do a purge, finding and deleting all files which are not used in any article. Is there a way I can automate this? 