I wouldn’t worry too much about that comment. The top comment is very much in keeping with the HN tradition of trashing others’ work without fully understanding the use case.

My favourite HN comment went like “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.” (https://news.ycombinator.com/item?id=8863)

Fortunately the person this was addressed to continued building Dropbox.