It did that, in this one particular case. Facebook has what, hundreds of millions of users, maybe billions? No system anybody can come up with can handle every

It did that, in this one particular case. Facebook has what, hundreds of millions of users, maybe billions? No system anybody can come up with can handle every case that every one of those users will have perfectly. They have something that their experience leads them to believe is at least pretty good for most cases. They're not going to change it because it did the wrong thing for one guy. They don't even know right now that it did the wrong thing. Presuming the root cause is a login from somewhere else from a password DB, all they know is they have 2 logins with the right password from 2 widely separated places. How are they to know which one is the right one? Asking for a real ID sounds like a good start, but the author refuses to provide one. Understandable, I suppose, but how else can he prove that he's the real account owner and not the other guy?