For targeting an individual, not likely. Though I haven't tried it in some time.
Though—since publishing this—I've had meaningful wins with campaigns targeting 20-50 person audiences so as to convert B2B sales, secure venture capital, etc.
Knowing exactly what you want/need and who from your intend to acquire it makes the social engineering aspect much simpler to accomplish.
Now you can do this on most sites, not only Facebook. Google Adsense has a Customer Match [1] feature that allows you to target ads to the list of emails or phones so it opens new possibilities for digital stalking.
OP of the Facebook Ads Prank here, AMA.