The simple answer: the more they know about you the more money they can make by selling it.

this article has some insights on the value topic.

this Reddit post also has some good information regarding this subject.

Lastly, this scandal

I hope this helps, please feel to correct me if I’ve misunderstood something.

You know how they use facial recognition to kill people in the middle east? It's the same idea here.

We’ve waited all this time to tell you. Unfortunately, we have run out of time. The reason you’re so interesting is

Cool. Now I can subtly influence you to pay for your free use MILF porn. Or use MILF models in your ads to make you more likely to buy shit.

Even if you don't think you can be influenced by that stuff it still likely to change your behaviour just enough, even just 5% more spending which makes it worthwhile to them.

But honestly your data barely matters on its own. But once it's merged with everyone else's....that's when it's valuable.

Yeah, it’s advertising. They want to be able to sell you clothes you’ll probably actually wear, video games you’ll actually play, etc. They probably don’t care about your google spell checks as much as they care about what posts you’re liking on your Instagram reels.

On one hand, it sucks to not really have that privacy. On the other hand, people act like if you don’t use a VPN for every single online service today that in 5 years data brokers will sell your exact address to the Islamic Jihad for ten dollars.

Because the data is worth quite a bit of money - more than people realise, otherwise these companies would be paying us for it.

Pick up habits, profiling so they can know what you are interested in and the areas you frequent to target you more efficiently. More likely for directed advertising but can also be for influencing.