Major Problems With Safari
kuwan writes "There have been many problems reported with Safari on Apple's discussion boards. The two most prominent are that option-clicking on a link to download can replace your Home folder with the downloaded file, effectively nuking your Home folder. The other has been reported as a printing problem, but is far worse. The printing problem occurs because Safari deletes /tmp, which is a link to /private/tmp."
I had to re-install the OS on two of my Macs - a TiBook and a Dual800 G4. None of my files were deleted by Safari but I couldn't print, other users couldn't log in, plus a few other problems.
After 45 minutes with Apple Support/Care they suggested I archive and install 10.2.
I strongly suggest that you seriously back up your home directory or not use Safari at all.