Like others have said, automatic photo upload sites are not allowed here. Storage space is the first concern, because we provide a website hosting, not a photo backup service.
But even if you have a small number of files being replaced frequently, we still cannot support that use case. We provide an FTP service for the purpose of website administration. Using it for automated backups is not something we can allow. We’ve installed fair usage limits on the FTP service to help ensure this.