Just popping in here for the time being to say this, ignoring how making an account and having the scans there kind of avoids the hassle of saving all the scans in Imgur all over again, there's this email notification Imgur has sent out in regards to the change of service.
So long as the scans themselves are informative you can make an argument against Imgur to keep the scans intact, assuming they actually do have something beyond just some random pornographic scene, and before anyone says they'll use a bot to get rid of the scans,
on their own guidelines on how Moderation works actual humans are running the checkups on the posts, so you can make an argument to keep the scans intact so long as they fit the criteria of being beyond just explicit content.