[ehnto]

Because the risks involved with complete knowledge of everyone at every moment are huge. Consider that most developed countries have for decades spent millions in spy agencies to get just enough dirt on people of interest to be able to manipulate them.

Imagine that the same information is now available on all people to many giant companies, some with almost government like spheres of influence, you can see the potential for manipulation grow.

The other part of Facebook in particular is that they sell that leverage to advertisers. An example of that would be the possibility that Russia influenced the US election. Whether or not it happened in either direction, the concept and possibility is something to be worried about.

The reason we should still care even though it seems ubiquitous already is because we messed up by getting here, but we can still fix it.

[hackinthebochs]

Well I'm paranoid enough to think such possibilities are a problem. But how do you sell those concerns to the average person?