However, what it does prove is that the recent SQL Injection attacks and major lapses in security at What.cd have meant that the user database has been harvested. If you have an account at What.cd, consider your email address and possibly password as no longer private.
Edit: An official comment response from What.cd:
We have a grip on our security.
The passwords are stored in salted hashes so everyones accounts are safe.
The attackers got email addresses and thats all.
We do know who it was
If you signed up anytime after last friday your information is safe
Edit 2: The What.cd admins have posted a response on their website, and have tracked down the culprit, a 14 year old kid and his brother. They've also posted his contact details in case anyone feels like writing to him to point out the error of his ways.
Edit 3: OK, not SQL injection attacks, but the kid having access to the server upon which the site was hosted. Also most of the kid's contact information has been removed from what.cd.