Keeping one's name secret is not the same as restricting login access; it's more akin to restricting knowledge of your password. If you know a way to keep a pas

Keeping one's name secret is not the same as restricting login access; it's more akin to restricting knowledge of your password. If you know a way to keep a password secret while also publishing it, let me know. Yes, it's fragile, and most people doing this don't have great opsec. But in general it works fine, as the threat model of someone looking you up on Facebook doesn't require a great deal to defeat. It's really rather unhelpful, however, when someone with high Google karma decides to publish that information you want kept secret.