For instance, someone named John Smith might rename his FB profile "Johnny S." This tactic allows our hypothetical Mr. Smith to dodge search engine results for his full name. It wouldn't protect him from having to hand over his password, but at least it keeps all those photos of his brandishing red Solo cups out of employers' SERPs. (Also, with the right privacy settings in place, it keeps him from being searchable on Facebook by someone who's not a friend).

If the password-handover procedure actually does become standard, then yes, I'd imagine we'd see the rise of dummy profiles and other countermeasures.