This might make it harder for normal people to find, but FB keeps your data around after it's "deleted" and I'm sure law enforcement has access to it as well.
You're right, but don't miss the bigger 'security picture' where we don't deal with absolutes, but probability and ease.
This wouldn't protect you from a CIA sponsored deep dive of your information, but it does give you a considerable advantage over your peers, scammers, and many levels of legal inquiry.
