Have you ever downloaded your Facebook or Twitter data? They collect quite a bit of information. Do you ever wonder why the ads literally target what you are thinking? They know more about you than you do.
Social media is free, but they have to make money in some fashion. Selling information about their consumers is what makes them money. This goes for Twitter, TikTok, Facebook, MySpace, Truth Social, etc. And don't think these people aren't against selling data to foreign countries or even foreign countries having others buy the data for them.