For a Linux user, you can already build such a system yourself quite trivially by getting an FTP account, mounting it locally with curlftpfs, and then using SVN or CVS on the mounted filesystem. From Windows or Mac, this FTP account could be accessed through built-in software.
I was unaware there was copypasta on HN. I know this might be generally the sort of post that the site wants to avoid, but the phenomenon of copypasta within a given community still makes my heart smile a little bit.