Comment 25 for bug 48734

I also think that one public directory like Windows or maybe even MacOsX have per default would be the best compromise. I mean this could be created in the home directory and a link added to every new user desktop like in case of the example folder.
With this sharing is even easier than with the current situation and others get their privacy.

Of course changing permissions is easy to evade through booting a live environment but we are not talking about professionals. I mean basically every security system could be breached but the effort and expectation is important I think.

For example afaik if a user logs in with an encrypted home directory it could be accessed from everyone as long as the user is logged in which is possible through user switching. In this case the directory permission would also help to protect the files.
Even if it would be not the case someone could boot a live environment and install a keylogger or similar.