So here is the irony. You can use the app without revealing your identity (no emails, facebook creds). However, if you want them to immediately delete your data ("most" data within 48 hours) you need to EMAIL them with a subject line "PRIVACY". So now I add an EMAIL to the Face. Perhaps I can send a mock email id but what about those that are not that aware but care about their privacy? They probably have now identified their photos, oh US needs laws, this is a bipartisan issue