Whether or not what Facebook did was illegal and she technically qualifies as a "whistleblower", I salute her for what she has done and is doing by telling this story. People need to know about this, because it is harmful. This doesn't mean it should be illegal. But it is something people should consider if they go to work for Facebook (or other companies), and hopefully it will inspire people to do something about t…
From where do you get the notion that something illegal needs to take place for someone to qualify as "whistleblower"? First time I encounter this idea.
A "whistleblower" in the USA is a legal term of art used to describe someone who reports wrong-doing to the government. The conduct being disclosed doesn't necessarily have to be explicitly illegal, but in order to be considered a whistleblower under the law, the information has to be disclosed to the appropriate government agency (i.e., reporting wrong-doing to a private organization or going public in the media wouldn't legally be considered protected whistleblowing).
More info here: https://en.wikipedia.org/wiki/Whistleblower_protection_in_th...
The OP's article says that Frances Haugen reported Facebook's actions to the SEC, so that may make her a whistleblower legally, but it's not clear if the SEC is the appropriate agency to handle social media regulation. That seems more like something the FTC or the FCC would be responsible for.