Removing files in the _temporary_ directory isn't "behind users' back", so it's better : you claim something, you stick to it.
Why not make applications save those files readonly? That way the user will not write to them.
Removing files in the _temporary_ directory isn't "behind users' back", so it's better : you claim something, you stick to it.
Why not make applications save those files readonly? That way the user will not write to them.