the deleting files part, because there are a lot of minor red links, duplicate files, and unused redirects to clean up. I'm saying if nobody here is going to perform the janitor's duty, let me be please?
There are 208 Special:UnusedFiles, most could be deleted, some are site images and others added by the Staff. I'm not sure if any are duplicate.
Special:BrokenRedirects and Special:DoubleRedirects don't seem to have much in them, nothing that needs to be deleted anyway. And in general we want redirects so people don't make duplicate articles based on spelling or translations.