In the above task related to the import of nonciclopedia.wikia.com to nonciclopedia.org here on Miraheze, I asked if it was possible to fix histories so that images wouldn't be all attributed to 127.0.0.1 in the file's page.
Since there's an actual and correct history loaded when pages were imported, this would "only" require to erase the last edit and show the real history in the files' pages.
For example, https://nonciclopedia.org/wiki/File:Snow_con_bicchiere.jpg only shows 127.0.0.1 as editor but in https://nonciclopedia.org/w/index.php?title=File:Snow_con_bicchiere.jpg&action=history we see it's actually Fuffoloschiomancio who loaded it, and Eeeeee who categorized it.
I know this might be difficult to fix, but would you please give it a try? We have almost 50K images on our wiki, a lot of them being original content, and it would be a pity if users who created them wouldn't get recognition (outside the overlooked history page, I mean).