@fribbledom So the day has finally come...
Really makes you wonder what this is supposed to be useful for. Let's assume it is not to check whether individuals are dangerous or involved in crimes because no one would be moronic enough to provide such incriminating info in an online visa form.
Also, assuming that the US govt isn't paying an army of people reading social media feeds of applicants, we can assume they just match it against an existing database of ranked user profiles...