Especially useful for capturing younger users who are more likely to be anti-Putin.
Inb4 Cambridge Analytica, FB didn't just hand off the data to them, users had to use a special third-party app within FB and explicitly give it permission to access the user data. And those APIs aren't available anymore after the backlash either way.
Then there's LinkedIn's public profiles, Github's public profiles, Twitter's profiles. This is just privacy theatre.