It’s also about the content.

What you create and consume.

That data is just like data of you browsing on Amazon. They use it to refine suggestions on what to show you next etc.

That also says a lot about your interests, political leanings, fetishes, medical issues etc. skipping certain videos or watching certain videos is feeding that algorithm. It knows you better than you know yourself. Hormones impact what interests/bores you before you even realize. Even menstrual cycles can be uncovered by data like this. Shopping habits can detect pregnancy before customers even realize their pregnant. People browse based on complex brain chemistry. Same thing goes for video and content you consume or create.

They could monetize it, use it for blackmail, use it as data points for misinformation campaigns etc.

I’m 100% convinced the whole antimask thing is a Russian and Chinese campaign to prove that they can perform a misinformation campaign at scale against a target. They convinced republicans who pride themselves on prepping for the end of the world with fallout shelters and gas masks to think a mask will kill them.

Imagine if they targeted US military and their families to desert? Or not wear necessary equipment? Or sabotage US assets.

They did that as a demo of what their misinformation weapon is capable of.

In 30 years this will be declassified and you’ll see this and the election interference were the real cuberwarfare. Not some “hackers” in a dark room with green text flying across a screen.