I can't confirm but according to the ESTA site[1], "an approved travel authorization is not a visa. It does not meet the legal or regulatory requirements to serve in lieu of a United States visa when a visa is required under United States law".
Therefore if the social media details become a requirement for visa applications only, then ESTA would theoretically be exempt. Having said that, social media is currently an optional field on the ESTA form so the foundation has been laid.
