alt Hacker NewsRhetoric won't save you from the embarrassing situation you created for yourself. You accused something of being a scam without understanding the definition of the word. Now that your claim has been challenged, you're trying to redefine terms and argue around the issue rather than admit you were wrong.
From dictionary.cambridge.org: a dishonest plan for making money or getting an advantage, especially one that involves tricking people:
I can easily see a social media company demanding an ID falling under this definition if the accuser believes that the actual use of said ID will be different or more expansive than implied. That is not an unreasonable assumption, IMO.