>>1072440 (OP)
FB is the same. Get a dev API key (free), and you use that with the official API library in the language of your choice, and you can scrape most user information that the user hasn't opted out of sharing. I used this to scrape names of everyone associated with "indivisible" when that was still being hyped. I just had to rate-limit the requests per hour. I don't think it's changed.
The Cambridge Analytica "scandal" was such a joke. FB gives ANYONE, including a nobody like myself, free reign to snoop on any of its users. That's the whole business model. Every social-media service is there to abuse the trust of its users.