Oy, what an overused pun.
Even if it's been pointed out already, it's worth another person pointing out again...
The salute photo
(and I haven't posted my attempt yet either... I know)
isn't about "see? I'm real!" whatever that means (erm... you were maybe... don't know.)
It's about being or not being the person people thought they were adding if they came from another site, about being the person in the other photos (if relevant- since there -is- no question of that in Orly's case...), that your account hasn't been hacked since you set it up, or given by you without your friends knowing to someone else, and the security of your friends-only blogs, photos and other items likewise (and any privileges your account has, not just ability to read/see/etc., go with your account to whoever has the password, obviously- including administrative; think of a hacked bouncer account, say.) (This last part is more of a tangent and hacking is a separate issue, on consideration- never mind :) )
Don't misread me, obviously these are often faked too; this is one extra layer of security, not some (non-existent) cure-all... but I'm clarifying what kind of security I gather it is, that's all.