pastebin is a directory listing of linode.com - trying out a few of the files checks out, including very difficult to guess file names such as:
Sysadmins being lazy.
Somebody needs to get a file from a workstation to a remote machine. There's a firewall in the way somewhere that prevents SSH directly between them or one of them is a Windows box that isn't running an SSH server.
The "correct" solution is complicated and takes 5 minutes to setup. So the sysadmin just copies the file to the web server and downloads it with a browser on the other end. Because port 80 is always open.