Have you guys read the recent news? http://thehackernews.com/2013/09/hacking-facebook-to-delete-any-account.html
The researcher literally shares the single .php line to put into the URL that is needed to delete ANY facebook account, and even the ID data needed is publicly available too.
It's an even more shame because the researcher turned this into Facebook (for those who know, Facebook pays those who find bugs in their system) and they won't even look at his submission.
It's a shame