Just from visiting the site I did not understand what "requesting" is. Would I browse some other dropbox user's filelist and ask him to send me one of the files

Just from visiting the site I did not understand what "requesting" is. Would I browse some other dropbox user's filelist and ask him to send me one of the files? Reading above it rather sounds like "Provide a place for someone to upload a file and then find it in your dropbox".