You're misunderstanding proper subjective WoT. The scammers would have to hack Granddaughter's Dad (and probably also Mom and Brother and Sister - because if their opinions diverge that's a serious red flag): There is no other way to "get into" a subjective WoT.

And the rebel hot blond that just wanted an outlet, posts her profile pick with no clue about any of this? She just left Facebook with an expectation that she is safe?