Thread:Raymond1922/@comment-28245851-20171222213229/@comment-27729796-20171223080927

Do not edit other users' sandboxes or userprofiles, even if you mean well. If you find an error in someone's work in progress, or have a suggestion, please bring it up on their message wall rather than editing directly. The only exception to this rule is collaborations between users (please contact an Admin first to let us know), or in the case of Admins patrolling redlinks, broken images, or replacing templates.” - Danganronpa Wiki:General Guidelines, June 1st 2017.

Regarding replacing files, no, you don’t have the ability to rename or delete, but you can upload files with better filenames or higher quality and remove the link to the old one.