Guest session deletes user's files without warning on logout

[Jakob Unterwurzacher]

That the guest session deletes all saved files is unexpected for the user.
Google a bit and you find many stories of users losing data because of this [1].
There absolutely should be a warning on login and on logout that the files will be deleted so the user has the chance to save to a thumb drive or dropbox or whatever.
Again, when you google a bit you find tutorials doing exactly that [2].

[1]
http://billhensley.wordpress.com/2012/02/27/ubuntu-10-guest-accounts-and-persistence/
http://ubuntuforums.org/showthread.php?t=1558808

[2]
http://ubuntuforums.org/showthread.php?t=1558808

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: lightdm 1.2.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14
Uname: Linux 3.2.0-23-generic x86_64
ApportVersion: 2.0.1-0ubuntu2
Architecture: amd64
Date: Sun Apr 15 13:12:24 2012
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328)
SourcePackage: lightdm
UpgradeStatus: No upgrade log present (probably fresh install)

[Joe T (joseph-thomson)]

My brother just lost several hours' worth of work because of this "feature" of Ubuntu. Needless to say, the chances of him ever seriously considering using Ubuntu in the future are now precisely zero. As you can imagine, he was fairly vocal about what he thought of Ubuntu, and quite frankly, I couldn't think of anything to say in Ubuntu's defense.

Why would "Linux For Human Beings" assume that anyone knew about this behaviour? As it stands, this is nothing more than Ubuntu deleting your files without asking and without warning.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.