One of the tactics spammers take online is a form of conditioned social engineering.
By making a fake account for an attractive half naked female friend request they get measurably higher rates of people accepting than other tests.
It is something that is popularly attractive. So people accept because, what if it is real? What is the harm right?
This is strategy is highly effective here.
Disguise your action as one that seems to give them what they want. When they accept the thing, you get what you want and more and as long as they think they got what they wanted then no one is the wiser.
The Spammer gets to market stuff and manipulate social signals.