Excellent - they'll be able to offer advertised another demographic category "People who are vocally privacy conscious, but who aren't prepared to do anything about preserving it if it means they don't get to play Farmville."

Antivirus vendors and shitty vpn services will be all over that.

Why not just every day? Only use it as much as absolutely necessary (to communicate with people you wouldn't be able to reach otherwise) and use competitors instead. Even using FB owned companies (e.g. Whatsapp) would help. While FB still gets some data, they don't get contents (unlike FB messenger all chats are end-to-end encrypted) and most importantly no ad revenues. And lower revenues is what would truly change Facebook's policies.

what is the point?