This is a warning to all Snow Leopard users, be aware that a somewhat obscure Snow Leopard bug deletes ALL DATA from a user account, yikes! This will likely NOT effect you, but if you’re a Snow Leopard user you should understand the bug and the consequences. According to CNET:
“when logging into the guest account on their Mac first and then logging into their regular account, some users are finding all their data to be missing and their accounts completely reset.”
Apparently Apple is aware of this issue, and it’s not particularly widespread (suggesting it doesn’t happen all the time), but in any case Snow Leopard users should protect themselves and NOT use the Guest account for the time being! I’m sure Apple will release a bug fix rather quickly since this is gaining some mainstream press around the web.
If you’ve run into this problem and you’re freaking out, check out this page on CNET for a possible fix to restore data.
Personally, I love Snow Leopard and the only issues I’ve had are problems with Snow Leopard wireless connections.