Images in this category are pending Wikipedia:VRT confirmation. They are probably added to this category by the template {{Permission pending}}
on the image description page.
The current backlog processing tickets sent to [email protected] is 0 days. (There is a separate backlog for the [email protected] address at Commons:Volunteer Response Team/backlog.)
The bot B-bot will automatically tag images for deletion if they are in the backlog beyond the time where we should have received the email. (Articles must be processed manually because we often can simply remove the offending text if we don't receive appropriate permission rather than deleting the article completely.)