For some lists I monitor the attachment image storage for storage that has gotten out of control. It is not possible to review and search all attachments conveniently.
For example, video files eat up a lot of space and are not subject to the size limitations for image attachments, they don't show-up in the e-mail photo album, very cumbersome to find
and when found it is impossible for an owner/moderator to strip the attachment and save the message.
Before taking Draconian messages, it would be prudent to analyze what files are found stored as attachments and perhaps ban/restrict certain file types that are currently stored in attachments,
but are not controlled by current image size restrictions.