I'm replying to the dead comment.

The Facebook site is evil and should be destroyed because of 2 reasons, in my opinion.

Firstly, the news feed is solely designed to get you to stay on the site for longer. And what that means is you get an echo chamber. So, idiot people get idiot posts that agree with them. It's not just a problem on one side of the political spectrum, it's a problem for any extreme view. Anti-vaxxers, left wing communists, and right wing fascists all get into their echo chamber and never get out.

Secondly, the advertising platform that Facebook has created is too powerful. It lets you micro-target people in a way that is absolutely perfect for political ads. You find people vulnerable to an emotional message and bombard them with your emotionally responsive ads.

Facebook ads are good for non-political things as well, but in this case, we'll have to throw the baby out with the bathwater I think.

Do we have to throw the baby out with the bathwater? We can have regulation that bans the use personal information for political ads but allows it for toothpaste ads

I hope so. My concern is that it is hard to define what a political ad is sometimes. For example, if you have an ad that claims that some specific ethnic group gets food stamps more than another, is that a political ad? Because those are the kinds of ads that Russia was buying.

Instagram and Facebook share data; they are two interfaces to the same big pot of profiling data

https://help.instagram.com/833836199971426