Earlier quoted context omitted.
And the only proper way to do that identification is to go through the registered mail.
Given how many times I've had registered mail delivery screw up... no.
Forcing someone to provide real identification for a service that didn't require it to sign up in the first place is just ludicrous.
For all intents and purposes my email is the sole identification available for a service like facebook. Further, a passport picture isn't worth squat because there is nothing linking my email to it anyway (and a passport picture can easily be forged or copied).