That other guy doesn't know what he's on about.
It's a collaboration tool for artists to upload some of their things to share with others. Here's something from the FAQ.
Q: What is File Storage?
A: File Storage, also called "Dumping Grounds," is mainly for users to share works-in-progress with their friends and collaborators. Upon upload, each file is given a random URL and linked only to the uploader's list of stored files. The only other people who have access to them are those who are given the URL for a particular file.
File Storage is not an image gallery. It was not designed for the purpose of showcasing art or photos, but so that users who are working on a project together can post their work for each other to view and download. Privacy is the main function of this feature.